The use of LED lights do you have any question? Dynamic | | industry lighting: solar led street lamp manufacturers in the countryside

The practicability of the LED street lamp is very wide, but also there are some problems affecting the service life of the LED street lamp, especially its LED light source. LED semiconductor features determine its are greatly influenced by the environment, such as temperature, LED the current will increase; The increase of the voltage, the LED current will increase. More than rated current job for a long time, can greatly shorten the service life of the LED. And the LED constant current is in the environmental factors such as temperature and voltage changes, to ensure the working current constant. Some poor precision of constant current power supply on the market error & plusmn; 8% or & plusmn; 10%, constant current error is too big. General requirements in & plusmn; 3% is ok. According to the error of 3%, 6 road in parallel, the error of each road & plusmn; 0. 5%, if it is 12 road in parallel, the error of each road & plusmn; 0. 25%, the precision is enough. Precision is high, the cost will increase greatly. And for the LED, 17 milliampere and 17. 5 milliampere. The output power of LED street lamp ( If this parameter is especially important, low efficiency means that a good portion of the input power is converted into heat; If it is installed inside the tubes will generate a very high temperature, plus we have LED a photosynthetic efficiency than send out quantity of heat, can produce higher temperature superposition. So efficiency is the most fundamental factor decision power life, efficiency cannot be too low, otherwise consume too much heat on the power supply. Generally in more than 80%. This information is provided by lighting exclusive and source from http://www. jhzm88. com/ledlddsyyh。 超文本标记语言