The method is simple: look at the box behind the supply quantity, led color, multiplied by the maximum power of each power supply, according to the size of the box you can calculate the maximum power meters, power general use, there are two, 200W and 300W power supply . Usually refers to the use of power is to play advertising video, text, pictures power, because the use of power and broadcast content directly related to, led electronic display, it is difficult to have a precise value, but according to our experience, led, usually the maximum power consumption of 1/3. Lower power consumption on behalf of lower cost and smaller heat which depends on the current size, led electronic screen, directly affects the life and stability of the display. We talked about a lot of the above LED failure is usually routine inspection and testing of the LED can not be found. In addition to electrostatic discharge, large current (caused by excessive junction temperature), the improper use of an external force, etc., many LED failure at high temperatures, low temperatures, rapid changes in temperature or other adverse conditions, since the LED chip, an epoxy resin, stent The difference in the lead, solid crystal plastic, PPA cup thermal expansion coefficient, etc., causing different internal stresses generated, therefore, quality testing LED is a very complex task. led electronic screen, led, Gao Jin photoelectric provided by Jinan Optoelectronics Technology Co., Ltd. Gao Jin. Jinan Gao Jin Optoelectronics Technology Co., Ltd. (www.gjlled.cn) strong, credible, in Jinan, Shandong liquid crystal device industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Gao Jin photoelectric and you hand into the brilliant, for a better future!