Here at DARAY, we prefer our customers to be as knowledgeable as we are about our products and the technologies we employ therein. We understand that sometimes we use (seemingly) odd terms native to the lighting industry that you may be unfamiliar with, such as; Colour Temperature, Lux, Dioptre! To prove to you that we aren’t just making these words up, you can find various guides within this Discovery Centre - designed to help you learn more about a specific term, and importantly, to discover how each feature would benefit a specific clinical application - enabling you to make an informed decision about which style of lighting or which specification of monitor is correct for you and your Department.

Colour Temperature

What is Colour Temperature?

The Colour Temperature of a light source is an important consideration for Surgical use.

Colours are conventionally expressed in Kelvin (K), a unit of measure based on the Kelvin scale.

Colours over 5,000K are higher on the Kelvin scale and are known as ‘cool’ colours, whilst colours of a lower value on the same scale are called ‘warm’ colours.

Visually, a higher value gives the appearance of ‘blueish-white’ - similar to a cold, stark, clinical setting (think: kitchen/supermarket lighting!) – this has been proven to increase productivity and visual acuity, keeping you alert and focused. These colours provide the Surgeon with the truest tissue colour rendition.

A value at the lower end of the scale gives an appearance of ‘warm’ tones (think: lighting for comfortable settings such as a living room/bedroom). For a Surgical application, a warmer tone is useful for accurate tissue differentiation, as the red values (R9) found in blood and tissues appear more pronounced.



Here at DARAY, we prefer our customers to be as knowledgeable as we are about our products and the technologies we employ therein. We understand that sometimes we use (seemingly) odd terms native to the lighting industry that you may be unfamiliar with, such as; Colour Temperature, Lux, Dioptre! To prove to you that we aren’t just making these words up, you can find various guides within this Discovery Centre - designed to help you learn more about a specific term, and importantly, to discover how each feature would benefit a specific clinical application - enabling you to make an informed decision about which style of lighting or which specification of monitor is correct for you and your Department.

Installation Services

We have our own carefully selected team of Installation Engineers, fully trained to offer the best service in new installations, refits, retrofits and servicing. Professional, courteous and punctual – our team provide the highest level of customer service, and with an intimate knowledge of our lighting products, they ensure that the right solution is installed to meet the unique requirements of your department.

Here at DARAY, we fully understand the negative impact of down-time within a clinical environment, that’s why we strive to work as quickly and as professionally as possible, with our installation methods carefully planned and designed for minimal disruption to the patients and staff. We will work closely with you during the quotation process to ensure that we can attend site on a day that best suits you.

In some cases, we may require a visit to your site beforehand, for the purpose of performing a site survey. For all installations, we will ask for you to complete in a Pre-Installation Questionnaire, or for a qualified person to complete it in on your behalf. This is so that we can best understand the building structure within the proposed location, and the optimum fixing methods, enabling us to plan ahead accordingly.

If you have an installation requirement, please just ask us and we will be happy to provide a quotation. Our quotes will always be fair, competitive, and inclusive of full installation, testing, commissioning, attendance to site, labour costs, and mileage surcharges. Any materials previously identified as required for the successful installation of the equipment are covered by this price.

Call us now on 0333 321 0971 to book your DARAY Engineer.

Installation Terms:

  • Unless otherwise stated, all quotes exclude installation. DARAY offer consultancy and guidance on our entire product catalogue. We also offer installation services with our lighting range. If you choose to opt out of our installation service, do not follow our guidance or our installation instructions; DARAY cannot be held responsible for the installation of the products detailed in your order. All installations should be conducted by trained and competent personnel following applicable standards and laws
  • Should these products be incorrectly installed, violate health & safety, or cause injury to a third party, the responsibility is with the installer. This includes without limitation; liability for loss of profits, use, product, production, increased cost of operation, spoilage of materials, or any and all other commercial or personal loss arising in connection with the use of DARAY products.
  • DARAY installation services require the completion of a Pre-Installation Questionnaire (PIQ). If the PIQ is not completed or if the information supplied is incorrect then the customer accepts responsibility for any resulting actions, including but not limited to, a failure to complete installation which may incur additional charges. Installation costs include full installation, testing and commissioning of the quantity of equipment as detailed on the specification, Attendance to site, labour costs, mileage surcharges and any materials previously identified as required for the successful installation are also covered. Any materials required that we did not have advance knowledge of will be charged accordingly. If any structural issues are found on site that prevent us from being able to install the equipment, it may be necessary to abort the visit until the issue is rectified. Any aborted visits will incur further charges.

Here at DARAY, we prefer our customers to be as knowledgeable as we are about our products and the technologies we employ therein. We understand that sometimes we use (seemingly) odd terms native to the lighting industry that you may be unfamiliar with, such as; Colour Temperature, Lux, Dioptre! To prove to you that we aren’t just making these words up, you can find various guides within this Discovery Centre - designed to help you learn more about a specific term, and importantly, to discover how each feature would benefit a specific clinical application - enabling you to make an informed decision about which style of lighting or which specification of monitor is correct for you and your Department.

Magnifying lights – Dioptre explained

Magnifying lamps are commonly used by podiatrists, dental clinics, dermatologists, paediatricians, jewellers, watch and electronics repair, industrial inspection, scientific research labs – also for general examination use in a clinical setting. They are considered an essential tool when working with inspection, precision assembly, or design. Lighted magnifying lamps offer you the ability to view small details effortlessly, and as a result, they are extremely helpful in preventing eye strain and reducing vision fatigue.

This guide will increase your understanding of DARAY’s LED Magnifying lamps and should help you decide if it best suits your intended application.

Why buy a magnifier with a built-in LED light?

Despite the many advances in the field of lighting, most workplace locations still suffer from poor and indirect lighting conditions. This lack of efficiency of light distribution can directly result in marginal viewing performance, so good lighting is always a crucial element to consider. A Magnifying lamp compensates for this with a pattern of LED modules arranged around the magnifying window, to illuminate the object being viewed. Whilst Halogen and Fluorescent light sources are available too, these are not as energy-efficient as LED technology, which also tend to last far longer and require no further maintenance, along with no requirement for bulb changes – saving further cost over the lifetime of the product and eradicating downtime.



What does the term 'Dioptre' actually mean?

You will often see the term ‘dioptre’ used when searching for a magnifier. This, quite simply, refers to the amount of curvature in the lens. The higher the dioptre value, the more powerful the magnification, and the greater curvature of the lens. The term ‘dioptre’ directly identifies the refractive capacity of a lens, which is different from the term ‘magnification’. Magnification is the degree to which the viewed object is enlarged, this is usually expressed by the symbol ‘x’, which denotes the viewed size of the object in relationship to its actual size. To find the magnification level, a simple calculation is used: Locate the ‘dioptre’ number of the product you are looking to find the magnification value of (for example, the DARAY MAG700 is available in 3, 6, and 12 Dioptre options), divide that number by 4, then add 1. I will show this calculation using a 12-Dioptre lens: 12/4 + 1 = 4x. The 4x magnification value found equates to a 400% enlargement of the viewed object. To ascertain which ‘dioptre’ lens you should be purchasing, you are not just considering how ‘large’ you want the object to appear in the viewing window, you also have to take into account the focal length..


So, what does focal length mean?

The term ‘dioptre’ as described above has a direct correlation with the focal length. This is a measurement of the distance between the lens and the object, to the point where the object remains in focus to the user. Consider the fact that most uses for a magnifying light require space above the object and below the lens to work, typically with hands/tools. Consider what happens when shining a torch onto a wall – you reduce the distance (focal length) when you move the torch (magnifier) closer to the wall. In turn, moving away from the wall has the opposite effect, and the distance (focal length) increases. The higher the magnification of your chosen lens, the shorter the focal length, meaning you would need to have the object closer to the lens to achieve focus, thereby reducing the space in which you have available to work between the lens and the object. If little space is required, you will benefit from a higher magnification – these high-powered lenses are usually reserved for very close inspection and minute measurements. Requiring lots of space to work between the lens and object, such as for fiddly tools and complex procedures, means you will need to purchase a lower magnification, allowing greater focal length (space in which to work). To sum up the above, with a higher magnification/dioptre value, the focal length and field of view (FOV) within the lens become smaller.

Dioptre
(Value)
Equivalent to…
(Magnification)
Size increase of viewed object…
(%)
2 1.5x 150%
3 1.75x 175%
4 2x 200%
5 2.25 225%
6 2.5x 250%
7 2.75x 275%
8 3x 300%
9 3.25x 325%
10 3.5x 350%
11 3.75x 375%
12 4x 400%

2 pence As viewed in original size with the naked eye

2 pence 1.75x or 175% of the original size, observed through a 3 Dioptre lens

2 pence 2.5x or 250% of the original size, observed through a 6 Dioptre lens

2 pence 4x or 400% of the original size, observed through a 12 Dioptre lens


What is 'Field-Of-View' (FOV)?

The field of view is the size of the magnified area that is in focus under the lens. The lens actually remains the same size, however due to the increased curvature of the lens in line with a higher magnification (dioptre), the field of view diminishes accordingly. To refer back to our torch analogy from above, consider that as you move the torch closer to the wall (higher dioptre value/stronger magnification/reduced focal length), the spot of light on the wall from the torch becomes smaller (field of view).

Any other benefits?

Our magnification lamps are mounted on a set of spring-balanced arms, which, in turn, would be coupled with one of a variety of mounting choices that we have available – such as a wall bracket, or a desk clamp, among others. A major benefit of having the magnifying lamp mounted to a surface is that it offers you the freedom of being able to use both hands within your work, whilst continuously viewing the object under magnification. In most applications, the benefit of hands-free operation is vital and boosts productivity.


Tips for best use

  1. Similar to how you would use a pair of prescription glasses, ensure to use both eyes when viewing objects via a magnifier. If you are new to using a magnifier within your work, you may struggle to focus your vision for a few moments, do not worry - this is just because your eyes are adjusting to the increased amount of light they are receiving from the lens.
  2. Always maintain good posture for best results, and if need be, adjust the position of your working surface or the height of your chair. Another benefit of having the magnifying light mounted on a set of manoeuvrable arms is that you can position the lens exactly where it is needed, and to assist you in avoiding bad habits such as leaning too far into, or away from, the lens.
  3. Keep your eyes at a steady distance of approximately 8 – 10” from the lens. At this distance you will experience the least distortion of the image.

Here at DARAY, we prefer our customers to be as knowledgeable as we are about our products and the technologies we employ therein. We understand that sometimes we use (seemingly) odd terms native to the lighting industry that you may be unfamiliar with, such as; Colour Temperature, Lux, Dioptre! To prove to you that we aren’t just making these words up, you can find various guides within this Discovery Centre - designed to help you learn more about a specific term, and importantly, to discover how each feature would benefit a specific clinical application - enabling you to make an informed decision about which style of lighting or which specification of monitor is correct for you and your Department.

Choosing the Correct Loupes

The best method to evaluate loupes is to look at an object with straight black lines, as below Fig.A. The most common sign of poor quality loupes are low resolution, chromatic aberration and spherical aberration.

Resolution is defined as an optical system's ability to form distinguishable images of objects separated by small distances, or to recognize fine detail. When comparing different loupes, look at the testing objects and select an area of tiny detail that can only be seen with magnification.

Chromatic aberration refers to colour distortion. Because each colour has a different wavelength, uncorrected optics causes the various wavelengths to focus at different points in space. The first colour that generally comes out of focus is blue. When looking at black lines on white paper; poor quality loupes will display a blue haze just to the side of the black lines, as depicted in Fig.B.

Spherical aberration refers to the flatness of the image. When viewed through loupes, an object that exhibits spherical aberrations would appear to be curved or spherical, as depicted in Fig. B. The lines would not appear straight, as in the original Fig. A.

Viewing colourful or complex objects such as anatomical models or the inside of your hand does not give you the opportunity to evaluate loupes for their true optical performance, as most people are not trained to see the differences on such complex images. A simple piece of graph paper, however, can reveal the difference between mediocre and high quality loupes.

Other important considerations are light transmission, depth of field and field of view.

Light transmission is important not only for quality of the image, but also for the comfort and safety of your patients. Optimized light transmission means that you can work with less light, reducing your eyestrain while minimizing the exposure of your patient to bright light.

Depth of field is defined as the range that's in focus away from and towards you without moving your head. The ergonomic benefits, or how comfortable the loupes are to wear, of a large depth of field are clear because there is less need to move your back and neck to work effectively.

Field of view refers to the amount of the original object that you can see at one time. Different applications have different needs. A bigger field of view is not always the better choice; for instance, an endodontist might prefer to see only the area of focus, whereas a periodontist would like to see as much of the surrounding area as possible. Side-by-side comparison is the best method to choose the loupes that are right for you. We are confident that when you look into loupes from us, you'll see why we say the difference is clear.


Below, you will find a table offering a general guide to the specific Loupes that should be used, for a variety of clinical applications. If the intended application is not listed, please use your knowledge of the complexity and intricacy of the operation to find the best fit, based on the following examples of commonly used and recommended magnification levels: NOTE: This table is to be used as a guide only.

Which strength Loupes should I be using?

Discipline Key Body Size
Up to 1.75m 1.75m - 1.95m Over 1.95m
Opthalmology Magnification 2.5x - 3.5x 2.5x - 3.5x 2.5x - 3.5x
Focal Length 300 - 400mm 400 - 460mm 460 - 520mm
Cardiac Surgery Magnification 3.0x - 3.5x 3.0x - 3.5x 3.0x - 3.5x
Focal Length 400 - 460mm 420 - 460mm 460 - 500mm
Surgery (general) Magnification 2.0x - 3.2x 2.0x - 3.2x 2.0x - 3.2x
Focal Length 400 - 460mm 420 - 460mm 460 - 520mm
Oral & Maxillofacial Surgery Magnification 3.0x - 3.5x 3.0x - 3.5x 3.0x - 3.5x
Focal Length 340 - 400mm 400 - 460mm 420 - 500mm
Nerve/Tendon Surgery Magnification 4.0x - 5.5x 4.0x - 5.5x 4.0x - 5.5x
Focal Length 340 - 400mm 400 - 460mm 460 - 500mm
Neurosurgery Magnification 2.5x - 3.5x 2.5x - 3.5x 2.5x - 3.5x
Focal Length 400 - 460mm 420 - 460mm 420 - 520mm
Orthopedics (standing) Magnification 2.5x - 3.5x 2.5x - 3.5x 2.5x - 3.5x
Focal Length 400 - 460mm 420 - 460mm 420 - 520mm
Orthopedics (seated) Magnification 2.5x - 3.5x 2.5x - 3.5x 2.5x - 3.5x
Focal Length 340 - 400mm 400 - 460mm 460 - 520mm
Plastic Surgery (standing) Magnification 3.0x - 3.5x 3.0x - 3.5x 3.0x - 3.5x
Focal Length 400 - 460mm 420 - 460mm 460 - 520mm
Plastic Surgery (seated) Magnification 3.0x - 3.5x 3.0x - 3.5x 3.0x - 3.5x
Focal Length 340 - 400mm 400 - 460mm 460 - 520mm
Urology Magnification 2.5x - 3.5x 2.5x - 3.5x 2.5x - 3.5x
Focal Length 400 - 460mm 420 - 460mm 460 - 520mm
Vascular Surgery Magnification 3.5x - 5.5x 3.5x - 5.5x 3.5x - 5.5x
Focal Length 340 - 400mm 400 - 460mm 460 - 500mm
General Dentistry Magnification 2.5x - 3.2x 2.5x - 3.2x 2.5x - 3.2x
Focal Length 250 - 340mm 340 - 400mm 400 - 520mm
Endodontology Magnification 2.5x - 4.5x 2.5x - 4.5x 2.5x - 4.5x
Focal Length 400 - 460mm 420 - 460mm 460 - 520mm

Here at DARAY, we prefer our customers to be as knowledgeable as we are about our products and the technologies we employ therein. We understand that sometimes we use (seemingly) odd terms native to the lighting industry that you may be unfamiliar with, such as; Colour Temperature, Lux, Dioptre! To prove to you that we aren’t just making these words up, you can find various guides within this Discovery Centre - designed to help you learn more about a specific term, and importantly, to discover how each feature would benefit a specific clinical application - enabling you to make an informed decision about which style of lighting or which specification of monitor is correct for you and your Department.

LED Technology – How does it benefit you?

DARAY’s LED Examination and Surgical lighting range is the perfect choice for value and performance. Our LED lights have been developed to replace Halogen completely, saving you time, money - and importantly - diminishing your carbon footprint.

LEDs (light emitting diodes) have been around for a long time. Recently this technology has become leading-edge in the field of lighting - a breakthrough technological solution to the inherent problems of the incandescent light bulb. We have taken the technology and developed it further to provide high definition lighting solutions with no infrared, high brightness, low environmental impact, low power consumption, no toxic chemicals and a long operating life.

Here are the main benefits you can expect from switching your old Halogen lights to LED:

1. Long Lifespan

A core benefit of LED lighting is the lifespan of the LED bulb/module. With most of our lighting products, you can expect a life of approximately 50,000 hours. Let’s say the light is in use for 5 hours a day, that’s roughly 20-25 years of use from the LED light engine without ever needing to change the bulb – thereby reducing waste by 95% over the lifetime of the product.

2. Energy and Cost Efficiency

LED lights have an approximate energy efficiency of around 85-90%. This means that, of the total electrical energy used, 85% is used to actually produce light, with the remaining 15% being lost and converted into heat (still only producing a 2°c increase).

By comparison, a Halogen or an Incandescent light bulb has an efficiency of only 20% - meaning that a whopping 80% of the total electrical energy used is lost and converted into heat! Say if you were to have an electricity bill of £100 for lighting, then £80 of it was spent on lost energy. By making the switch to LED systems throughout, that same bill would sit at around £15 – saving you £85. Apply those maths to the average electrical bill for lighting only, for just one hospital, and you’re talking huge savings.

It’s not just the task lights such as the ones you use for Examinations and Surgery that you can switch, also consider all of the other types around you; Room lighting, reading lights, corridor lighting, car parks, headlights, streetlamps, etc. The more efficient you become on a larger scale, the more you can multiply those savings. Consider also, as discussed above, the savings made on the long lifespan of the bulb – further adding to the kitty and reducing wastage.

Consider for a moment, the extra funding available to a Hospital that has switched all of its lights to LED, and has therefore reduced its annual lighting bill by approximately 75-80%. Consider also what this money could be better spent on, perhaps towards providing much needed additional staff? Extra equipment? More efficient maintenance, and better quality of care for patients?

So, why waste it on producing unnecessary and harmful heat, gratuitous wastage and avoidable downtime.

3. Low Environmental Impact

LED lights, by nature, are free of all toxic chemicals. Most conventional lighting types commonly found in healthcare establishments, such a Fluorescent and Halogen bulbs contain a multitude of materials that are harmful to the environment, such as; Halogen, Mercury, Cadmium, Lead and CFCs

As well as containing no toxic chemicals, this type of light is also 100% recyclable – further helping you to reduce your carbon footprint by a huge leap. The long operational lifespan discussed in the above section means also that just one light converted to LED can save material and production of 25 equivalent incandescent, fluorescent or halogen bulbs. Here’s to a greener future!

4. Zero Heat in the Beam/Zero UV Emissions

Illumination by LED light produces absolutely no UV (Ultraviolet) emissions, and very little infrared light.

As a result, the very low radiated heat emission of LED lighting makes them highly suitable in a clinical environment, for illumination of both humans and animals, due to our UV-sensitive skin and delicate eyes.

5. Increased Visual Acuity

It remains a scientific fact that using LED lighting enhances your visual acuity – reducing eye strain among surgeons, headaches and fatigue. This works because an LED source delivers more ‘usable’ light to your retina, in part due to the high brightness and more natural Colour Temperature, essentially decreasing the amount of work that your eyes and brain have to do to distinguish one object from another. This helps contribute to, among other things, increased mental focus, faster responses, and reduced anxiety.

The superior Colour Rendering assists further, by allowing you to greater differentiate between tissue colours and tones. (see Colour Spectrum Explained)

6. Dispersal of Light

Our lights feature a strong beam of light with an even intensity across the entire area for clearer viewing and reduced eye strain. Halogen type lights, for example, make use of a mirrored reflector to help disperse the beam. These reflectors are covered with a dichroic filter, which can become stained over time with the high heat levels it is exposed to with constant use, thereby reducing the actual light output long before the bulb has reached the end of its life.

LED lighting, on the other hand, has no reflector and is designed to focus its light beam, achieving a much higher efficiency to the viewed area than other types of light. DARAY spend a lot of time on research and development of our lighting systems to ensure that they are able deliver the required amount of light to the subject far more efficiently.

7. Flexibility of Design

The lighting products in our range that are intended for Medical use, are designed with a circular light patch to match the intended clinical application on the human body. Our Dental lights produce a rectangular light patch, as required for Oral Surgery. This limits the emitted light to the mouth area only and away from the eye area, ensuring ultimate patient comfortability.

Some of our lights have a higher or lower fixed Colour Temperature than others (see Colour Temperature Explained within the Discovery Centre), and some with adjustable levels. All models (except for the X100 model) have variable intensity functions, for dimming the light.

We are able to do this because the technology behind LEDs allows for many different combinations of effect, enabling us to tune them to very specific levels for varying applications.

8. Safety

With a temperature raise on the surface of only 2°C, the risks of a patient or user burning themselves on a hot light bulb are entirely eradicated. All of our LED lights utilise a low voltage power supply, and the light fittings adhere to the anti-ligature requirements of the NHS.

Achieving 100% recyclable lighting within the UK’s Healthcare system is a lofty goal, however with a harsh environmental climate being realised far more so for future generations than our own, we all have a responsibility to reduce our environmental impact and adapt our procedures and equipment accordingly. The cost savings and efficiency increases seen when making The Switch, are simply added bonuses.

Our efforts to encourage LED solutions within the clinical workplace, and to provide further innovation within the lighting industry are making a big difference – one location at a time. That’s why DARAY are proud to be known as the UK’s most recognisable Medical Lighting manufacturer.

Here at DARAY, we prefer our customers to be as knowledgeable as we are about our products and the technologies we employ therein. We understand that sometimes we use (seemingly) odd terms native to the lighting industry that you may be unfamiliar with, such as; Colour Temperature, Lux, Dioptre! To prove to you that we aren’t just making these words up, you can find various guides within this Discovery Centre - designed to help you learn more about a specific term, and importantly, to discover how each feature would benefit a specific clinical application - enabling you to make an informed decision about which style of lighting or which specification of monitor is correct for you and your Department.

International Plug Types

To assist our customers outside of the United Kingdom, we can supply a full range of adaptors for all of our products, and for all International plug types. Whilst placing an order, your Account Manager will discuss with you which plug type you require, and we will endeavour to cater to your needs.

Please view the below guide, and advise us which of the following types* you would like us to supply with your order.

If you are unsure, or if you cannot recognise the appropriate socket from the below images, please follow the link here to find a list of the plug types and voltages as sorted by country, as provided by World Standards.eu.

*If choosing types A or C, please also select an alternative compatible type, as some of our products will require the plug to be grounded.



Here at DARAY, we prefer our customers to be as knowledgeable as we are about our products and the technologies we employ therein. We understand that sometimes we use (seemingly) odd terms native to the lighting industry that you may be unfamiliar with, such as; Colour Temperature, Lux, Dioptre! To prove to you that we aren’t just making these words up, you can find various guides within this Discovery Centre - designed to help you learn more about a specific term, and importantly, to discover how each feature would benefit a specific clinical application - enabling you to make an informed decision about which style of lighting or which specification of monitor is correct for you and your Department.

Upgrade Kits explained

Are you an existing DARAY Dental customer? Our business has thrived on your support for the last 50 years – now we feel it’s time to give something back to you.

As an alternative to replacing the whole light, you can convert your existing DARAY light* to a new LED model with one simple, affordable kit!

These newest editions to our range have been designed specifically with our customers in mind, offering you a choice, based on your lighting preference AND your budget. Our Upgrade Kits allow your practice to enjoy the benefits, cost-savings, and practicality of LED Dental Light technology without the costs associated with replacing the entire fixture.


Our Upgrade Kits will utilise your existing arms and mount, ensuring that your business is not disrupted by building work or downtime. Using our bespoke adaptor, a new LED light head, and a replacement power supply, we can transform your existing light into a modern, technologically advanced, energy-efficient dental light – for a fraction of the cost of replacing the whole unit.

DARAY take pride in guaranteeing that our lights will provide exceptional benefits for your practice. You will immediately be impressed with the potential savings opportunities, which can be measured in several ways: First, we are competitively priced to keep your initial cost to a minimum. Second, the quality makes them outstanding value. Third, the running costs are amazing too.


We remain fiercely proud of our history, our continued innovation and our world-leader status in the field of clinical lighting solutions. Our commitment to excellence is behind every product and service we deliver! Please call us on 0333 321 0971 to discuss your requirement, we are here to assist. Alternatively, email us: sales@daray.co.uk

*Compatible with the following dental light models: BiLite, DL50, QiLite. Cylindrical-arm type versions only (2005 onwards).

VIEW EXCEL UPGRADE KIT VIEW ULTRA UPGRADE KIT

These guidelines are provided to help you maintain your equipment properly and prevent any damage. We have a large range of lighting products, each made with different materials and with different finishes. Use of incompatible cleaning chemicals can adversely affect the finish and physically damage the metal and plastic parts of the DARAY product, invalidating its warranty.

A copy of these cleaning instructions have been supplied with your DARAY light. Please ensure these instructions are passed to the persons responsible for cleaning and are followed before each use.

If you require another copy of these instructions, click to download the PDF at the bottom of this page.

Manufacturers recommended cleaning method:

  1. Turn off the power to the light, and where possible, unplug the mains socket.
  2. Remove noticeable contamination. Pay special attention to the light head and handle.
  3. Ensure the equipment is surface-cleaned and disinfected using an appropriate, non-abrasive cleaning agent (see recommended list below).
  4. Dry all surfaces thoroughly with a clean cloth and check for damaged surfaces, discolouration and/or contamination.

NOTE: Some DARAY products feature our BioProtect® antimicrobial coating on painted finishes.This is designed to assist with infection control and is not a replacement for cleaning.

CAUTION: Our products are NOT waterproof. The equipment and accessories (included chargers and battery packs) MUST NOT at any point be saturated, to prevent water ingress. Use a damp cloth or saturated wipe if necessary. All electrical safety guidelines should be followed.

Any damage caused as a result of not following these guidelines will void any product warranty.


Below is a partial list of recommended surface agents:

  • Cavicide™ products
  • Isopropyl alcohol-based cleaners (<40% alcohol)
  • Ethyl alcohol-based cleaners (<40% alcohol)
  • Lysol® disinfectant
  • Other non-bleach and non-abrasive disinfectants or cleaners

DO NOT USE agents containing the following:

  • Organic, mineral and oxidizing acids (min. pH value 8.5)
  • Bases (max. acceptable pH value 8.5)
  • Oxidation agents (eg. Hydrogen Peroxide)
  • Halogens (chlorine, iodine, bromide)
  • Aromatic/halogenized hydrocarbons
  • Bleach-based cleaners (eg. Clorox™, Sterilox™)
  • Abrasive cleansers (eg. Comet Cleaner™)
  • Acetone-based cleaners (eg. nail polish remover, Goo-off™)
  • MEK (Methyl Ethyl Ketone)

If you are unsure of whether you are using the correct cleaning fluids on your DARAY equipment, please feel free to get in touch with us for advice.

Download PDF

The below guide has been assembled to help our customers with the simplest issues that they may be experiencing. For any other issues that cannot be resolved here, please call the DARAY Service Delivery Team on 0800 878 9864 or email: support@daray.co.uk

Support FAQ's

Adjustment of arm balance to eliminate drift

Product compatibility:

Current models - X400, SL180, DIAMOND, EXCEL, ULTRA.
Discontinued models - BiLite (Mk.II onwards), QiLite, SL200, ME10.

The jib arm on your DARAY light will have been balanced during manufacture, however over time you may need to occasionally rebalance the arm, particularly if the arm ‘drifts’ into a lower position when you move the head.

Note: Before adjusting the arm tension, ensure the head and handle are both attached.

  1. Push the primary arm up to its highest position, this makes it easier to adjust the tension.
  2. Locate the capstan (see image circled right). This is accessible through a small gap in the underside of the primary arm, through which you will see a nut with two small holes in each side. Insert a small implement (e.g. hex wrench 2mm AF) into one of the holes in the capstan located at the top of the jib arm (can be seen when standing underneath the arm). You will see stickers labelled 1 and 2 on either side of the capstan opening.
  3. TIP: Grip the hex wrench as close as you can to the base to prevent it from bending.

    • If the arm is drifting downwards: Turn the capstan in the direction of label 2 until desired balance is obtained.
    • If the arm is drifting upwards: Turn the capstan in the direction of label 1 until desired balance is obtained.

    You should be able to set the head in the required position with no further movement once you let go of the head.

For details on how to adjust the arm tension on the following models, refer to the relevant product manuals. Click on the product name and a PDF copy of the manual will open in a new browser window.

Power issues: Troubleshooting your light

If you find that your light suddenly won’t power on, there is usually a very simple explanation behind the issue, and we’d like to get you back up and running as soon as possible. In this guide, we will help you to troubleshoot the light, in order to rule out the simplest of potential causes in the first instance.

DARAY started manufacturing LED lights back in the late-2000’s, and since then, all of our models have adopted our LED technology (aside from the MAGW150 Ultraviolet Woods Light). Prior to this, every light we manufactured featured a Halogen light source.

If you have one of our older Halogen lights, it is not uncommon for a bulb to require replacement as a Halogen bulb has a far shorter lifespan in comparison to an LED equivalent. Though, we recommend still following the below steps just to ensure that the bulb is at fault and not some other element.

  1. Not wishing to state the obvious, but please ensure that the power to the light is switched on! Check the plug socket if you have one of our mobile models or wall/desk/rail mounted models with a plug-top supply. Alternatively, if you have a hardwired light, such as a ceiling or wall mounted variant wired to a switched fused spur, check that the wall switch is set to the ON position.
    If you have a Halogen light, check that the bulb is pushed into the bulb housing correctly.
  2. Some models feature a mains power switch, this can be found at the bottom of the base on some mobile models, or on the arm of some older wall or ceiling models. Check that this is switched ON.

    Model shown: X350 / SL180 / SL720

  3. Many models in our LED range feature a 'variable intensity function', wherein the brightness of the light can be controlled directly by the power switch. Double-check that your light hasn’t been accidentally turned down to it’s lowest dimmable setting - it’s easy to assume it is powered OFF when at it’s dimmest! If the light is on but just very dim, use the switch to try turning the brightness back to a higher setting. Unsure how to do this? Follow this

    Model shown: X200 / X210 / X230

  4. If you have exhausted the above steps with no joy, CONTACT US! Our friendly and knowledgeable Service Delivery Team is here to provide Technical Support, further troubleshooting guidance specific to your model, and will advise on any replacement parts needed, where necessary.

Call us on: 0800 804 8384

Open Monday to Thursday 9am-5pm (Friday 9am-2:30pm)

Alternatively, email: support@daray.co.uk

Adjusting the variable intensity function of your light

The majority of the LED models within our range have a dimmable light source, thanks to our 'variable intensity' feature. This feature allows customisation of the light’s intensity level (brightness) to suit the needs of the individual user or the clinical application.

Models: X200, X210, X230, X240, X340.

The above models feature our 'one-touch control'. Both the power ON/OFF and adjustment of the variable intensity are controlled by a single switch, located on the rear of the head.

  1. Press once to power ON.
  2. Press and hold to adjust the intensity. It takes approximately 4 seconds to switch between the highest and lowest settings. Release the button when at a comfortable setting for the user.
  3. Press once to power OFF.

Model shown: X200 / X210 / X230


Model shown: X400

Models: X350, X400, SL180.

These models feature a unique rocker switch next to the head. This switch controls both power ON/OFF and adjustment of the light intensity.

  1. Press once to power ON.
  2. Press and hold to adjust the intensity. It takes approximately 4 seconds to switch between the highest and lowest settings. Release the button when at a comfortable setting for the user.
  3. Press once to power OFF.

Models: X700, X710, X730, X740, SL430, SL720, SL730, SL400 Range, SL700 Range.

All of the above models feature a control panel with specific controls for adjustment of light intensity. See the below images to identify your model.

Model shown: X700 Range / SL720 / SL730


Models: DIAMOND, EXCEL, ULTRA.

The above dental light models showcase our unique 'touch-free control' feature to assist our dental customers with maintaining infection control standards. Each head carries an infrared sensor, allowing the power ON/OFF and intensity adjustment to be easily controlled with a gesture/wave of the hand. Each model also features a manual override switch on the rear of the head.

Using the touch-free control:

Familiarise yourself with the location of the infrared sensor on your chosen model:
DIAMOND - located at the top of the handles on either side of the head.
EXCEL – located on the underside of the head.
ULTRA – located on the underside of the head.

  1. Whilst mains power is connected to the light, it will remain in standby mode.
  2. From standby mode, wave your hand underneath the sensor in one swift motion. Keep your hand no more than 4 inches from the sensor.
  3. The light head should power on, with an audible beep.
  4. Wave your hand once more, the light head should power off, again with an audible beep.
  5. To adjust the intensity, hold your hand still underneath the sensor – again, keeping your hand no more than 4 inches from the sensor. Depending on whether the light was already on a low or high intensity setting, it will gradually dim/brighten over a period of approximately 8 seconds. An audible beap will sound from the unit when the light reaches one of its variable intensity peaks (highest and lowest).

NOTE: The variable intensity control has a memory function; whereby, if the light is turned off at a dimmed level, it will remember that level the next time it is turned on.

Model shown: EXCEL

Using the manual switch:

  1. Locate the toggle switch on the rear of the light head.
  2. Push once for ON.
  3. Push and hold to adjust the intensity. You will notice the light start to dim/brighten, and a beep will sound once the light has reached its highest or lowest setting. Or, release at any point to set the brightness at your desired level.
  4. Push once for OFF.

NOTE: If you have one of our older Halogen models, it’s not uncommon to discover that the bulb becomes very dim near the end of it’s life - sometimes by up to as much as 50% of it’s original brightness. This is a problem inherent with Halogen technology, try replacing the bulb if this is a concern.


Upgrading your light

Our current LED dental lighting range includes an ‘Upgrade Kit’ option, to convert an existing DARAY halogen light to one of our modern LED equivalents with just one simple, affordable kit. For more information, click here

A copy of these cleaning instructions have been supplied with your DARAY light. Please ensure these instructions are passed to the persons responsible for cleaning and are followed before each use.

If you require another copy of these instructions, click to download the PDF at the bottom of this page.

Manufacturers recommended cleaning method:

  1. Turn off the power to the light, and where possible, unplug the mains socket.
  2. Remove noticeable contamination. Pay special attention to the light head and handle.
  3. Ensure the equipment is surface-cleaned and disinfected using an appropriate, non-abrasive cleaning agent (see recommended list below).
  4. Dry all surfaces thoroughly with a clean cloth and check for damaged surfaces, discolouration and/or contamination.

NOTE: Some DARAY products feature our BioProtect® antimicrobial coating on painted finishes.This is designed to assist with infection control and is not a replacement for cleaning.

CAUTION: Our products are NOT waterproof. The equipment and accessories (included chargers and battery packs) MUST NOT at any point be saturated, to prevent water ingress. Use a damp cloth or saturated wipe if necessary. All electrical safety guidelines should be followed.

Any damage caused as a result of not following these guidelines will void any product warranty.


Below is a partial list of recommended surface agents:

  • Cavicide™ products
  • Isopropyl alcohol-based cleaners (<40% alcohol)
  • Ethyl alcohol-based cleaners (<40% alcohol)
  • Lysol® disinfectant
  • Other non-bleach and non-abrasive disinfectants or cleaners

DO NOT USE agents containing the following:

  • Organic, mineral and oxidizing acids (min. pH value 8.5)
  • Bases (max. acceptable pH value 8.5)
  • Oxidation agents (eg. Hydrogen Peroxide)
  • Halogens (chlorine, iodine, bromide)
  • Aromatic/halogenized hydrocarbons
  • Bleach-based cleaners (eg. Clorox™, Sterilox™)
  • Abrasive cleansers (eg. Comet Cleaner™)
  • Acetone-based cleaners (eg. nail polish remover, Goo-off™)
  • MEK (Methyl Ethyl Ketone)

If you are unsure of whether you are using the correct cleaning fluids on your DARAY equipment, please feel free to get in touch with us for advice.

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