We have a unique approach to LED lighting (Solid State Lighting) – We not only focus on the best lighting effect possible by the Luminaire, but also on the reliability and the longevity of the fixture, which is very critical especially in LED lighting – thanks to the well designed optics and highly engineered Luminaire to ensure excellent heat dissipation.
Basically LEDs or LIGHT EMITTING DIODES are just tiny light bulbs that fit easily into an electrical circuit. Unlike ordinary incandescent lamps, LEDs do not have a filament and will not burn out and does not produce excessive heat in the light output. In technical terms, LED is a semiconductor device that emits monochromatic light of varying colors depending on the doping material.
Benefits Of LED Technology
1) Long Life and high lumen output.
Unlike conventional light sources, LEDs are NOT subjected to sudden failure or burnout. Instead LED’s gradually degrade in performance over their long life time - predicted to deliver an average of 70 % of initial lumen output after 50,000 hours of Operation. In an application where the light source would be lit for 12 hours per day, this would mean a system life time of over 11 years at 70 % lumen maintenance.
2) Low Maintenance
Since a well designed LED fixture would last at least 10 times longer than a fixture with a conventional light source, there is no need to replace them as often, reducing or eliminating ongoing maintenance and periodic re-lamping costs. Standard incandescent lamp will typically operate for 1000 hrs before failure whereas fluorescent lamp boasts approximately 9000 hrs lamp life. Hence the 50,000 plus hrs lamp life of our LED products can clearly reduce or eliminate ongoing maintenance and periodic re-lamping cost. It is also important to emphasise that the life time quoted for an LED product is 70 % lumen maintenance and not based on failure of lamps as in the case of conventional light sources.
The long life of a solid state solution also allows for trouble free design even in extreme temperature or light shock and vibration environments. This provides enhanced design freedom without requiring provision for accessibility and replacement.
3) Energy Efficiency
The latest Power LEDs are more efficient than incandescent and halogen light sources, with white LEDs achieving over 90 lumens or more per watt. This is becoming comparable with the more efficient light sources including fluorescent, and is starting to become a viable alternative. When looking at LEDs as an alternative, it is important to consider the total system benefits. For example, due to the decrease in energy used for the lighting of a building, the air conditioning costs drop, generating both additional and ongoing investment savings. The directional or focused output from an LED source ensures that all the light emitted is useable light rather than just light being emitted in all directions which is generally wasted. The Solid State Lighting can also produce vivid colours without the need for special filters or gels.
LEDs are typically much smaller than conventional light sources, allowing for dramatically different lighting designs capitalising on the unobtrusiveness of the light source. Working with LEDs can enable completely hidden sources of light eliminating large visual luminaries, and creating a magical effect when illuminated. The flexibility of LEDs allows for new, playful, and innovative lighting solutions, never previously conceivable.
5) Vivid Colours without Filters and Colour Change
LEDs do not require filters to create coloured light, resulting in deeper saturated colours without wasted light. Deep reds, greens, blues and other colours can be produced in mono-chromatic form directly from the LED itself. With conventional light sources, when filters are used, they block out the undesired portions of white light and only let the desired portions through the blocked light that is not the correct colour is therefore lost energy. On traffic lights for example, a 12 Watt LED array in red has replaced a 150 Watt bulb, resulting in dramatic power savings due to the higher efficiency of coloured light generation. These strong primary colours can also be used to create RGB colour mix systems with a vast array of colours being achieved.
6) Directed Light
The light emitted from an LED is directional. Typical conventional light sources are Omni-directional, emitting light in all directions. To direct the light, reflectors have to be used in order to direct the light onto the object to be illuminated. Each time a beam is reflected, it loses some of its intensity resulting in a fixture loss from 40 to 60%, meaning that in some cases more than half of the light is not directed in the desired direction. The directed nature of LEDs can result in fitting efficiencies of 80 to 90%, requiring less total lumens to provide the same level of luminance.
LEDs are solid state devices containing no moving parts and no filaments to burn out. As such LEDs handle tough environments including heavy vibration and impact. There is nothing to break, rupture, shatter, leak or contaminate. This solid state nature of LEDs makes them extremely rugged and durable and therefore an ideal solution for applications where reliability is paramount. Many light sources in use today are not well suited to cold environments, with some requiring special drivers to enable ignition. Cold start is not a problem with LEDs suitable for ambient temperatures down to -40ºC, simplifying design and reducing costs for these specific applications.
8) Fully Dimmable without Colour shift
LEDs are fully dimmable with standard driver technologies without sacrificing any characteristic of the light. Our control gear is available for 1-10 Volt, DMX or Digital Dimming, offering smooth and accurate colour control without any shift in colour.
One key advantage of our technology is a much lower Electromagnetic Interference (EMI) (5 times lower), over our competitors PWM solutions. Low EMI is extremely important for applications such as Health Care Facilities where this interference is detrimental to equipment used for Life Safety, for Avionics and other EMI sensitive applications. This is a great example of the technological advantages offered by us.
9) No Mercury
Unlike fluorescent light sources, LEDs contain no mercury. Eliminating mercury from the lighting system will enable you to meet future increasingly stringent environmental regulations.
10 ) No Heat & UV in the light Beam
Conventional light sources contain invisible radiation as well as the visible component of the light in the beam. The radiation can be very short wavelength blue, known as ultraviolet, or long wavelength red, known as infrared, which causes heat. The ultraviolet can and will damage materials, cause colour changes and eventually degrade most materials on which it shines. For museums and other applications where ultraviolet light is a liability, LEDs are therefore the ideal solution. The low heat characteristics of LEDs are also important in areas where the fitting cannot run hot. Already we have replaced several ‘hot’ in ground applications where halogen fittings have been creating major safety problems due to their excessive heat.
Drawbacks Of LED Technology
1.) Initial Outlay
LEDs are currently more expensive than more conventional lighting technologies. However due to advances in technology the cost of ownership of LEDs is becoming less than traditional light sources.
2). Poor engineering creates problems
LED performance largely depends on the ambient temperature of the operating environment. ‘Driving’ an LED ‘hard’ in high ambient temperatures may result in overheating of the LED package, and eventually to device failure. Adequate heat-sinking is required to maintain long life and also to ensure the optimum light output of the LEDs by maintaining the LED junction temperature within the specified parameters. All our products are thermally engineered with this in mind.
We offer only highly engineered fixtures with marvellous lighting performance and excellent heat dissipation ensuring life throughout and beyond the 5 year Warranty offered by us.