Global energy crisis led to environmental change the earth will quake days, I understand the urgent search for the per capita green with energy-saving technology is important, the rise coincides with LED lighting industry, the large number of technology companies in this emerging industry, because of LED lighting could not trust real-time performance standards set properly In order to regulate, resulting in a large number of products passed the test can not be serious bad light ended it without a design study for the theoretical pillars of view, resulting in the use of the owners concerns, delayed the timing of industrial development. With these LED lights of high-performance lighting system to a number of components of the important technical guidelines on specifications for the advanced information and data.

1.) LED chips & Packaging key technology components luminous efficiency indicators:

The primary components LED chips & Packaging, the United States and key technologies, the Japanese manufacturers have been mass production efficiency breakthrough LED 100 ~ 120 lm / W and above, beyond the traditional maximum efficiency of HID light (light-emitting efficiency of 90 ~ 110 lm / W), All solution to the current lack of illumination lamps ≧ 45 lm / W problems, lighting the road to meet life-long decline in line with international standards of low average intensity of 25 ~ 40 Lux specifications and energy saving 30 to 50 percent of demand.

2.) LED luminous efficiency VS temperature rise and key technical specifications life indicators:

Second View CREE or Osram LED data released its chip PN junction temperature Tj <85 ℃ order to ensure that the work life of 50,000 hours, and the PN junction to its own chip-chip thermal conductivity (Tjs) temperature rise to Δ T = 6 ~ 15 ℃, and In addition LED light efficiency and operating temperature is inversely proportional performance characteristics, each increased 10 ℃ lead to bad light five to eight percent and halve the life of the serious consequences, and general publicity LED can work in up to 100 ℃ life of 100,000 hours over the concept of Far from.

3.) LED lights system cooling temperature heat transfer technology key indicators:

Therefore lighting system shall not be higher than the temperature of 85-10 = 75 ℃, the institute LED road lighting lamps standard model provides durability test temperature of 60 ℃ environment streetlights cooling system so temperature rise must be less than Δ T ≦ 15 ℃, to the 150 WLED companies as an example of street lamp-cooling system of low-temperature tests Δ T ≦ 12 ~ 15 ℃, calculate their heat resistance Tr = 0.08 ~ 0.1 ℃ / W, and the general design system temperature test Δ T ≒ 30 ~ 40 ℃, Calculation of the thermal resistance Tr = 0.2 ~ 0.26 ℃ / W, life will be shortened to two times and bad light more than 15 percent. In addition to 350 W LED lamps test its cooling system can reach a temperature rise Δ T = 15 ℃, heat resistance Tr = 0.04 ℃ / W quality products.

4.) LED lights cooling system heat transfer method of key technologies:

Electronic equipment heat transfer cooling methods are applied to low-power and low-heat methods, such as MR16/PAR30 from 1 ~ 70 W product temperature rise has been as high as 30 ~ 40 ℃. Exceeds the 100 ~ 250 W still using natural cooling methods such as the current most of the products, you must use a substantial increase in aluminum alloy materials guided heat and the large heat exchange area, volume 15 ~ 30 Kg weight range, low-end to the law of natural cooling The greater the area of heavy use of metal materials to reduce the temperature better, only that the aluminum alloy material costs increased by 30 to 70 U.S. dollars if the switch to high-reliability industrial air-conditioners and air-conditioned computer CPU, and other high-end products using high-power initiative compulsory Thermal methods and efficient regulation of small fan Lvjun 50,000 hour lifetime guarantee IP65 waterproof dust grades, test lighting system temperature as low as Δ T ≦ 12 ~ 15 ℃, compared with the natural cooling method of cooling down 20 ℃. Life will increase the efficiency of 2 times the brightness of light and an increase of 15 percent or more.

5.) LED lights system reliability, durability, performance testing adapt to the environment indicators:

General product design did not take into account fallout protection system, totally necessary to prevent sand dust storms, gravity-dust accumulation in the cooling structure, resulting in the fatal burning of LED overheating problems, if the cooling structure towards the days of lead-dust accumulation, the accumulated heat can not be divergent, leading to LED light failure and burning; I can design a cooling structure towards the ground completely resolved. Other anti-salt spray test, the test of time outdoors 15000 Hr. After bad light <10 percent in good condition. Trunk road lighting optical design to the world the national standard, 10-metre-high banner Denggan must illuminate the average 40 meters long road to solve difficult optical lens design, to achieve a 1:4 ratio of height to width requirements.

Wick lightweight core module technology, not rely on the shell as a heat-lamp, the light of any changes in appearance designed to shape and reach the city aesthetic characteristics.