LED Lighting Blog

Eneltec Group published articles about LED lighting business, LED applications, LED industry, LED Supplier, LED technical, any other LED things.

The current status of LED stage lighting applications

The current status of LED stage lighting applications
LED has features of high luminous efficiency, dimmable, small monomer power, high selling prices. As technology advances, LED stage lighting applications has been widely used.     Since the promotion of blue-ray, white-ray and high-brightness LEDs in 1990s, the luminous efficiency of LEDs improved continuously. The luminous efficiency of commercialized LED tubes has reached up to 50lm/W – 100lm/W. And it is still increasing with time. It is estimated that the maximum lumin...Continue reading
January 29th, 2013
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U.S. scientists invested warm white LED lamp

U.S. scientists invested warm white LED lamp
It is well known that LED (light0emitting diode) energy-saving lights have higher luminous efficiency and longer service life. The current LED lights are mainly used blue-ray LED chips as light sources, which hindered their popularity in the field of indoor lighting applications, since almost all residential lighting applications are warm white. Scientists from the University of Georgia, USA has recently developed the world’s first warm white LED lamp with single phosphor and single light-emitti...Continue reading
January 29th, 2013
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More than 80% failure of LED products is from LED power suppliers

More than 80% failure of LED products is from LED power suppliers
LED lighting market is fast growing, along with the rapid development of LED lighting industry. On one side, manufacturers for traditional light power supplies aggressively introduced new LED power suppliers or upgraded products for LED lights. On the other side, man entrepreneurial companies have been founded as well. However, the power technology is not mature yet. There is still no unified standard and the corresponding market is also in chaos. Relevant experts believe that LED lighting marke...Continue reading
January 29th, 2013
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The cooling section design for outdoor LED lights

The cooling section design for outdoor LED lights
Outdoor LED lights usually work in harsh and complex working environments: temperature, ultraviolet rays, humidity, rain, dust, chemical gases and other climate factors. All these factors combined can significantly affect the light attenuation of LED chips. Designers should take all these environmental factors into account when during the design of outdoor LED lights.     Shell and radiator designed as a whole to solve the LED cooling problem is an appropriate method. Norm...Continue reading
January 29th, 2013
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Light attenuation solutions for LED roadway lighting products

Light attenuation solutions for LED roadway lighting products
In order to solve the serious light attenuation problem of LED roadway lighting products, LED street light manufacturers need to start with basic materials, solving the cooling problem from inside. For example, when light-emitting components stick with aluminum plates, heat conducting glue plays a rather important role. Some makers believe that heat conducting films and heat conducting pads have much better performance, the thicker the better. However, they do not take into account of the therma...Continue reading
January 29th, 2013
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Analysis of the light attenuation of LED roadway lighting applications

Analysis of the light attenuation of LED roadway lighting applications
Currently, the majority of LED roadway lighting applications face with serious light attenuation. This problem can only be fundamentally solved through the improvement of LED cooling technology. According to recent statistics, China has the highest growth rate in LED roadway lighting applications. It is predict that this dominating will be continued in 2013 in the global market. In 2012, the Chinese Ministry of Science and Technology issued a LED-lighting-related project: “Ten thousand lights in...Continue reading
January 29th, 2013
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LED test: errors frequently happened

LED test: errors frequently happened
Usually, in LED test, luminous flux, CRI, color temperature and power deviation are four major aspects that with relatively high failure rates. Unqualified quality testing results mainly concentrate in four aspects: 1. Electrical insulation cannot meet the corresponding requirements: insufficient internal clearance and creepage distance, with touchable conductors (not safely isolated). Especially for some small sized LED lamps, the compact structure forced manufacturers to ignore the requirement...Continue reading
January 29th, 2013
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Advantages and selections of LED ceiling light

Advantages and selections of LED ceiling light
LED ceiling light use special process and G24 LED light source package, with higher luminous efficiency (120lm/W), better cooling effects, lower light attenuation (less than 3% after 3000-hour aging test), longer service life, safer, more durable and more reliable. LED ceiling light can be used in various conditions. Working temperature: -20 centigrade to 55 centigrade; working voltage: 12VDC/24VDC, 100-240VAC; Color: Cool White / Warm White / Natural White / Red / Yellow / Green / Blue / Multip...Continue reading
January 28th, 2013
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LED test: sampling test results are not optimistic

LED test: sampling test results are not optimistic
From the current LED product structure and developing direction, the main testing standards for LED-related lighting products are focus on optical performance, electrical performance, terminal conductivity, radiation safety and service life. Optical performance is mainly related to the luminous flux, radiant flux, luminous efficiency, chromaticity coordinates, correlated color temperature (CCT), color rendering index (CRI). Photoelectric detection, light distribution detection, light energy dete...Continue reading
January 28th, 2013
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Intelligent control will increase the added value of commercial LED lighting products

Intelligent control will increase the added value of commercial LED lighting products
Mr. Carlost LEE, the Secretary-General of the European Photovoltaic Industry Association expressed his views and questions in a recent published report of “When LED Enters Into the Third Development Cycle”: “It is expected that the general lighting industry will be explosively grow in 2018-2020. Certainly, the business model of the product should be combined with their life-cycle. G24 LED lighting products have relatively long life-cycle. Thus intelligent control will increase the added value of...Continue reading
January 28th, 2013
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Intelligent control is the biggest advantage of LED roadway lighting applications

Intelligent control is the biggest advantage of LED roadway lighting applications
After decades of development, LED light source can send out high-brightness white light. The laboratory records for luminous efficiency reached up to 130lm/W, far exceeding the original 100lm/W. No matter in which way, G24 LED lighting technology is dramatically improved. High-powered white-ray LED lighting products have been widely used in general lighting applications, including LED roadway lighting applications. Compared with traditional road lamps, LED road lamps are more energy-saving and e...Continue reading
January 28th, 2013
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LED beacon light start to emerge in the LED lighting market

LED beacon light start to emerge in the LED lighting market
Beacon light is a type of traffic lights installed in some beacon that ensure the safe navigation of ships and airplanes. They emit lights with particular colors and frequencies during the night, achieving particular irradiation angles and visual distances. Beacon light can be dived as fixed beacon, buoy, light boat and light house. Fixed beacons, buoys, light boats are usually used as navigation indicators or warming signals. Light houses issued identifiable signals day and night, helping ships...Continue reading
January 28th, 2013
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Reasonable prices will contribute to the popularization of LED garden lights

Reasonable prices will contribute to the popularization of LED garden lights
We can find a variety of garden lights in the market, with all sorts of styles and light sources. Some of them are cheap but with poor quality conditions, some of them have good performances and qualities but really expensive. The over-expensive selling price of one good is the biggest obstacle of the promotion and popularization of this good. It is well known that price is the critical factor that determines the cost-effective of one good. Advantages and prices all together determine that wheth...Continue reading
January 25th, 2013
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LED light fittings need technological upgrade and support

LED light fittings need technological upgrade and support
Currently, LED light fittings are still in the early stage of development. Although LED lighting products have entered the industrial area, commercial area and residential area, the immature technologies still need further development, like output power, luminous flux, secondary optical design, cooling and other problems. Among them, cooling problem is the biggest difficulty for LED manufacturers. Limited by LED working principles, all structure accessories of LED lamps should have good cooling ...Continue reading
January 25th, 2013
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LED home lights are still treated as assisted light sources in residential lighting applications

LED home lights are still treated as assisted light sources in residential lighting applications
In 2009, the leader of the global lighting industry – Philips, formally promoted LED home lights, listing LED residential lighting applications as one of their main developing directs in the next ten years. Meanwhile, another household lighting giant – OSRAM also promoted dimmable LED ceiling mounted lamps, to seize the market in an early time. All these implied the potentials and hopes of LED home lights dominating the residential lighting market.     However, Professor D...Continue reading
January 25th, 2013
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Design principles of LED display divers

Design principles of LED display divers
Large screen area is always a part and parcel of LED industry, an important part of large entertainment, sporting events, square theme display. Full color screen technology maintained a rapid development since the birth of blue-ray LEDs. LED plays a positive role in the outdoor decorative display market, with obvious expending trend. China is the largest producer of LED screens, from LED chips, to LED display divers, LED display controllers, screens, China’s products take the dominate position i...Continue reading
December 28th, 2012
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Characteristics of high-power LED package

Characteristics of high-power LED package
High-power LED package has been a hot research topic in recent years, due to their complex structures and production process and directly effects on the performance and lifetime of LED chips / LED lamps. The selection of LED packaging methods, materials, structures and production process is mainly determined by chip constructions, optical / mechanical characteristics, special applications and costs. After 40 years of development, LED package technology has gone through four major stages: Lamp LE...Continue reading
December 28th, 2012
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Ten advantages of LED fluorescent tubes

Ten advantages of LED fluorescent tubes
The luminous efficiency of fluorescent lamps is about 55-80lm/W (the luminous efficiency of Philips T8 tubes is 72lm/W). LED fluorescent tubes can have a luminous efficiency as high as 100lm/W. Cree has announced that the luminous efficiency of their recently promoted XLampXP-G series can reach up to 130lm/W, and expected to reach 150lm/W two years later.     Not all light emitted from LED chips/LED lighting boards can 100% reflected by reflectors / projectors. Fluorescent tub...Continue reading
December 28th, 2012
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Major achievements of LED emergency lighting technology

Major achievements of LED emergency lighting technology
“Studies of efficient driving technology and reliable system of emergency lighting applications” issued by Beijing University two years ago was concentrated on light source design, package technology, driver control circuit design and emergency lamp body design. After 2-year study, the research group developed new LED-related indoor emergency lighting devices with corresponding driver circuits and lamp body designs. In the mean time, the research group also participate the development of outdoor...Continue reading
December 28th, 2012
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Difficulties and innovations of integration technology of LED emergency lighting applications

Difficulties and innovations of integration technology of LED emergency lighting applications
LED technology just took the first step in the LED emergency lighting area. Advanced driver designs, emergency feature selections and sophisticated lamp body structure designs are all waiting for further development and innovation. Especially in the LED emergency lighting standards and reliability, our current technologies are still far behind international advanced technologies. Difficulties are:   LED packaging technology: a reasonable LED package structure is a technological key po...Continue reading
December 28th, 2012
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