Industrial grade high reliability LED streetlight evaluation indicator system

Global energy crisis had led to environmental change earth day, I seek to understand the urgency of the per capita green with energy-saving technology is important, coincides with the rise of LED lighting industry, a large number of technology companies into this emerging industry, as a result of LED lighting could not rely on real-time performance standards set properly In order to regulate, resulting in a large number of products can not be serious light through the test ended in failure, it is a result of non-design theory study of the pillars for the view, resulting in the use of the owners concerns, delayed the timing of industrial development. With a number of high-performance LED street lamp lighting system components to the important technical specifications of the data on indicators for advanced reference. laptop battery.1.) LED chip & package key technology components of light-emitting efficiency indicators: First and foremost the LED chip & package key technology component of the United States and Japan have been in volume production manufacturers breakthrough in light-emitting efficiency of 100 ~ 120 lm / W and above, go beyond the traditional maximum efficiency of the HID light source (light-emitting efficiency of 90 ~ 110 lm / W), to resolve At present, all less than illumination lamps ≧ 45lm / W issues, meet the road lighting and long life light decline in line with international standards of low average intensity of up to 25 ~ 40Lux specifications and energy-saving 30 ~ 50% of demand. 2.) LED streetlight system Chuan-cooling hot ambient temperature key technical indicators: Lighting system, therefore a temperature not higher than 85-10 = 75 ℃, ITRI LED road lighting lamps normative provisions of the Model Test the durability of the ambient temperature is 60 ℃ cooling system thus lamps must be less than the temperature rise ΔT ≦ 15 ℃, with the Company 150WLED streetlights Chuan hot cooling system as an example to test as low as the temperature rise ΔT ≦ 12 ~ 15 ℃, the thermal resistance calculation of Tr = 0.08 ~ 0.1 ℃ / W, while the general design systems to test the temperature rise ΔT ≒ 30 ~ 40 ℃, calculate the thermal resistance value Tr = 0.2 ~ 0.26 ℃ / W, life will be shortened to 2 times and the bad light by more than 15%. In addition to testing their 350W LED lamp cooling system able to reach a temperature rise ΔT = 15 ℃, thermal resistance value Tr = 0.04 ℃ / W products. inspiron 6000 battery.3.) LED luminous efficiency VS temperature rise specifications and key technologies life indicator: Secondly CREE or Osram LED View Data Dissemination its chip PN junction temperature Tj <85 t =" 6" href="http://www.goodbattery.co.uk/laptop-battery/dell-inspiron-9300.html">inspiron 9300 battery , inspiron 9400 battery , dell 310-6321.