ADVANCED LIGHTING TECHNOLOGY
LIGHTING TODAY FOR A BRIGHTER TOMORROW
BECAUSE THE ENVIRONMENT MATTERS
About Us
LIGHTING YOUR WAY TODAY FOR A BRIGHTER TOMORROW
GLite lighting technology (SA) (PTY) LTD is a wholly owned subsidiary of Zhongshan Liangjian lighting Technology which is a leading brand in china. We take the corporate philosophy of quality first and efficient service as our main aim. We believe in environmental protection, energy saving and cost effectiveness, we have expanded to South Africa to provide the market with a product that's eco friendly, affordable and most of all quality efficient.
We deal in LED light source for home, office, high power outdoor and project requirements. We strictly implement ISO9001 quality control system. Our products are approved by CE, RoHS, FCC etc. We comply with the LOA standards issued by the South african government, we are SABS approved and provide advanced, multi functional led products to satisfy every applicable requirements.
GLite lighting technology (SA) (PTY) LTD is a wholly owned subsidiary of Zhongshan Liangjian lighting Technology which is a leading brand in china. We take the corporate philosophy of quality first and efficient service as our main aim. We believe in environmental protection, energy saving and cost effectiveness, we have expanded to South Africa to provide the market with a product that's eco friendly, affordable and most of all quality efficient.
We deal in LED light source for home, office, high power outdoor and project requirements. We strictly implement ISO9001 quality control system. Our products are approved by CE, RoHS, FCC etc. We comply with the LOA standards issued by the South african government, we are SABS approved and provide advanced, multi functional led products to satisfy every applicable requirements.
THE HISTORY OF LEDs
.LEDs got their start as indicator lights for circut boards and small equiptment. Early specimens were very durable, had a relatiely low lumens output and accordingly were very energy efficient. Over time LEDs have become brighter and more reliable. Second generaion LED technology included the ability to string multiple LEDs into a single circuit. Over time , LEDs became more suitable for outdoor use. Accordingly, they were exponentially adopted by muncipalities as a replacement for incandescent bulbs in traffic lights. LEDs also saw limited success replacing flourescent bulbs and neon street signs. Todays LED technology is used extensively for commercial,industrial and residential applications.LEDs capabilities have increased across the board; increases in lifespan, increases in brightnesss (performance), and increases in energy efficiency. The greatly expanded use of LED technology has led to the development of warranties, industry best practices, and the introduction of government programmes
Understanding LED Technology
LEDs may be little, but new high brightness models are producing a considerable amount of light. First used as status and indicator lamps, and more recently in under -shelf illumination, accent lighting,and directional marking applications, high brightness LEDS have emerged within the last six years. but only recently have they been seriously looked upon as a feasible option in general purpose lighting.Before you reccomend or install this type of lighting system, you should understand the basic technology upon which these devices are based. Light-emitting diodes (LEDs) are solid state devices that convert electric energy directly into light of single color.Because they employ 'cold' light generation technology,in which most of the energy in delivered in the visible spectrum, LEDs dot waste energy in the form of non-light producing heat. In comparison, most of the energy in an incandescent lamp is in the form of non-light producing heat .In comparison most of the energy in an incandescent light bulb is infared (or non-visible) portion of the spectrum.As a result, both flourescent and HID lamps produce a grat deal of heat.In addition to producing cold light, LEDs;
-- Can be powered from a portable battery pank or solar array.
--Can be intergrted into a control system.
--are small in size and resistant to vibration and shock
--have very fast 'on time' (60 nsec vs 10 msec for an incandescent lamp)
--Have good colour resouion and preset low, or no shock hazard.
-- Can be powered from a portable battery pank or solar array.
--Can be intergrted into a control system.
--are small in size and resistant to vibration and shock
--have very fast 'on time' (60 nsec vs 10 msec for an incandescent lamp)
--Have good colour resouion and preset low, or no shock hazard.
The centerpiece of atypical LED is a diode that is chip mounted in a reflector cup and held in place by a mild steel lead frame connected to a pair of electrical wires. The entire arrangement is then encapsulatd in epoxy. The diode chip is generally about 0.25 mm square. when current flows across the junction of two different materials, light is produced frim within the solid crystal chip. The shape, or width, of the emitted light beam is determined by a variety of factors: the shape of the reflector cup, the size of the LED chip, the shape of the epoxy lens and the distance between the LED chip and the epoxy lens.The composition of the materials determines the wavelength and colour of light.In additio to visible wavelengths. LEDa are also available in infare wavelengths. from 830nm to 940nm.
the definitin of 'life' varies from industry to industry. the useful life for a semiconductor is defined as the calculated time for the light level to decline to 50% of its original value. For the lighting industry, the average life of a particular lamp type is the point where 50% of the lamps in a representative group have burned out. The life of anaLED depends on its packaging configuraion, drive current, and operating environment. A high ambient temperature greatly shortens an LEDs life.
Additionally, LEDs now cover the entire light spectrum, including red, yellow, orange, yellow, green , blue and white.
the definitin of 'life' varies from industry to industry. the useful life for a semiconductor is defined as the calculated time for the light level to decline to 50% of its original value. For the lighting industry, the average life of a particular lamp type is the point where 50% of the lamps in a representative group have burned out. The life of anaLED depends on its packaging configuraion, drive current, and operating environment. A high ambient temperature greatly shortens an LEDs life.
Additionally, LEDs now cover the entire light spectrum, including red, yellow, orange, yellow, green , blue and white.
Although colored light is useful for more creative installations, white light remains the holy grail of LED technology.Until a true white is possible,researchers have developed three ways to deliver it;
--Blendthe beams.This technique involves mixing the light from multiple single colored devices. (Typically red,blue and green.) Adjusting the beams relative intensity yields the desired color.
--Provide a phosphor coating. When energized photons from a blue LED strike a phosphor coating, it will emit light as a mixture of wavelengths to produce a white colour.
--Create a light sandwich.Blue light from one LED device elicts orange light from an adjacent layer of adiiferent material.The complimentary colors mix to produce white of the three methods the phosphr method seems to be the most promising technology.
Another shortcoming of early LED designs was light output, so reserchers have been working on several methods for increasing lumens per watt. A new 'doping' technique increases light output several times over compare to earlier genertions of LEDs. other methods under dev. include
--Poducing larger semiconductors.
--Passing larger currents with better heat extraction
--Designing a different shape for the device
--Improving light conversion efficiency
--Packaging several LEDs withing a single epoxy dome.
--Blendthe beams.This technique involves mixing the light from multiple single colored devices. (Typically red,blue and green.) Adjusting the beams relative intensity yields the desired color.
--Provide a phosphor coating. When energized photons from a blue LED strike a phosphor coating, it will emit light as a mixture of wavelengths to produce a white colour.
--Create a light sandwich.Blue light from one LED device elicts orange light from an adjacent layer of adiiferent material.The complimentary colors mix to produce white of the three methods the phosphr method seems to be the most promising technology.
Another shortcoming of early LED designs was light output, so reserchers have been working on several methods for increasing lumens per watt. A new 'doping' technique increases light output several times over compare to earlier genertions of LEDs. other methods under dev. include
--Poducing larger semiconductors.
--Passing larger currents with better heat extraction
--Designing a different shape for the device
--Improving light conversion efficiency
--Packaging several LEDs withing a single epoxy dome.
One family of LEDs may already be closer to improved light output.Devices with enlarged chips produce mor light while maintaining proper heat and current management.These advances allow th units to generate 10 times to 20 times more light than standard indicator lights, making them a practical illumination souce for lighting fixtures.
Before LEDs can enter the general illumination markt, designers and advocates of the technology must overcome several problems, including the usual obstacles to mainstream market adoption; Industry-accepted standards must be developed and costs must be reduced.But more specific issues remain. Things like lumen-per-watt efficacy and color consistency must be improved and reliability and human maintenance should be addressed. Nevertheless LEDs are well on their way to becomming a viable lighting alternative.
Before LEDs can enter the general illumination markt, designers and advocates of the technology must overcome several problems, including the usual obstacles to mainstream market adoption; Industry-accepted standards must be developed and costs must be reduced.But more specific issues remain. Things like lumen-per-watt efficacy and color consistency must be improved and reliability and human maintenance should be addressed. Nevertheless LEDs are well on their way to becomming a viable lighting alternative.
How do LEDs work?
The useful life of LED lighting products is defined differently than hat of other light sources, such as incandescent or compact fluorescent lighting (CFL). LEDs typically do not 'burn out' or fail. instead, they experience 'lumen' depreciation', wherein the brightness of the LED dims slowly over time. Unlike incandescent bulbs, LED ' lifetime' is established on a prediction of when the light output decreases by 30 percent.
LEDs are incorporated into bulbs and fixues for general lighting aplications.Small in size , LEDs prvide unique design opportunities.Some LED bulb solutions may physically resemble familiar light bulbs and better match the appearance of traditional light bulbs. Some LED light fixtures may have LEDs built in as a permanent light source. There are also hybrid approaches where a non-traditinl 'bulb' or replaceable light source forma is used and specially designed for a unique fixture. LED offer a temendus opportuinity for innovation in lighting form factors and fit a wider breadth of applications than traditional technologies. LEDs use heat sinks to absorb the heat produced by the LED and dissiate it into the surrounding environment. this keeps LEDs from overheating and burning out. Thermal management is generally the single most important factor in the successful performance of an LED over its lifetime. The higher the temperature at which the LEDs areoperated the more quickly the light will degrade, and the shorter the useful life will be.
LEDs are incorporated into bulbs and fixues for general lighting aplications.Small in size , LEDs prvide unique design opportunities.Some LED bulb solutions may physically resemble familiar light bulbs and better match the appearance of traditional light bulbs. Some LED light fixtures may have LEDs built in as a permanent light source. There are also hybrid approaches where a non-traditinl 'bulb' or replaceable light source forma is used and specially designed for a unique fixture. LED offer a temendus opportuinity for innovation in lighting form factors and fit a wider breadth of applications than traditional technologies. LEDs use heat sinks to absorb the heat produced by the LED and dissiate it into the surrounding environment. this keeps LEDs from overheating and burning out. Thermal management is generally the single most important factor in the successful performance of an LED over its lifetime. The higher the temperature at which the LEDs areoperated the more quickly the light will degrade, and the shorter the useful life will be.
LED lighting differs from incandescent and fluorescent in several ways. When designed well, LED lighting is more efficient, versatile and lasts longer. LEDs are ''directional'' light sources,which means they emit lght in a specific direction, unlike incandescent and CFL which enit light and heat in all directions. That means that LEDs are able to use light and energy more efficiently in a multitude off applications. However, it also means that sophisticated engineering is needed to produce an LED light bulb that shines light in every direction.Common LED colors include ambr, red, green, and blue. To produce white light, different color LEDs are combined or overed with phosphor material that converts the color of the light to a familiar ''white'' light used in homes.Phosphor is a yellowish material that covers some LEDs.Colored LDs are widely used as signal lights and indicator lights,like the power button on a computer. In a CFL, an electric current flows between electrodes at each end of a tube containing gasses. This reaction produces ultraviolet (UV) light and heat.The UV light is transformed into visible light when it strikes a phosphor coating on the inside of the bulb. Incandescent bulbs produce light using electricity to heat a metal filament until it becomes '' white '' hot or is said to incandence. As a result , incandescent bulbs release 90% or their energy as heat.
WHY YOU SHOULD USE CERTIFIED LED PRODUCTS.
There are more lighting options available today than ever before.Despite that, ENERGY STAR is still the simple choice to save on utility bills. LED ulbs that have earned the ENERGY STAR are subject to very specific requiremens designed to replicate the experience you are used to with a standrd bulb-so they can be used for a wide variety of applictions, Ascthe graphic on the right demonstrates ,a general purpose LED bulb that does not qualify for the ENERGY STAR may not distribute light everywhere and could prove to be a dissapoitment if used in a table. ENERGY STAR means high quality and performance, particularly in the following areas:
--Color quality~5 different requirements for color to ensure quality up front and over time
--Light Output~light output minimums to ensure you get enough light,lightdistribution requirements to ensure the light goes where you need it,guidlines for equivalency claims to take the guess-work out of replaacement
--peace of mind~verified compliance with more than 20 requirements to address performance and labeling,long term testing to back up lifetime claims, testing to stress the products in opening environments similar to how you will use th produt in your home,3 year minimum warranty requirment.
And as with all energy str products, certified LED bulbs are subject to random testing every year to ensure they continue to meet the ENERGY STAR requirements.
--Color quality~5 different requirements for color to ensure quality up front and over time
--Light Output~light output minimums to ensure you get enough light,lightdistribution requirements to ensure the light goes where you need it,guidlines for equivalency claims to take the guess-work out of replaacement
--peace of mind~verified compliance with more than 20 requirements to address performance and labeling,long term testing to back up lifetime claims, testing to stress the products in opening environments similar to how you will use th produt in your home,3 year minimum warranty requirment.
And as with all energy str products, certified LED bulbs are subject to random testing every year to ensure they continue to meet the ENERGY STAR requirements.
