L what are the precautions for courtyard lamp price ED street lamp

What are the precautions for LED street light, LED street lamp with energy-saving, environmental protection, long life, high refers to the advantages, man has become a street lamp down the star product, so the LED street lamp need to be aware of several big issues do you understand? Cape lighting electric co. , LTD for you



what are the precautions for LED street lights,

the LED street lamp with energy-saving, environmental protection, long service life, high show 【 High show, nan shan, was born in the yuan dynasty to two years ( In 1342 AD) , born in guangdong huaiji liang village party tan fujimara digging holes at the foot of the hill. 】 Refers to the advantages, man has become a street lamp down the star product, so the LED street lamp need to be aware of several big issues do you understand? Cape lighting electric co. , LTD. To explain one by one to you. Power plate series parallel with wide voltage more wide? To make the LED street lamp power supply' LED street lamp power supply is the world's most efficient switching power supply is as high as 95%, high power factor is up to 0. 99, high reliability long life, accord with IP67 waterproof level; Have over voltage through the temperature, short circuit protection, constant current constant voltage optional, with lightning protection design ( IE - 61000 - 4 - 5类) In line with the global safety and electromagnetic compatibility standards! The power consumption is only half of many competing products, because the power consumption is low, so the temperature of the power components is reduced, so that significantly enhance the reliability of the product. 】 Work in the input voltage range wide range AC85 - 265 v, the LED series parallel way is very important. As far as possible need not wide voltage, AC220V, AC110V classified as far as possible, to ensure the power supply reliability. The current power supply is not commonly isolated buck type constant current power supply, when required voltage 110 v, output voltage not over 70 v, serial number of not more than 23 string. The output voltage when the input voltage of 220 up to 156 v. In other words, the serial number of not more than 45 series. Parallel number not too much, otherwise the working current is too large, the power serious fever. Another kind of wide voltage, APFC 【 Active power factor correction ( 有源功率因数校正,简称APFC) Technology for network side power factor can increase power electronic devices, reduce the line loss, save energy and reduce power grid harmonic pollution and improve the quality of power supply and other advantages, widely used in many industries. 】 Active power counter is to use the L6561/7527 the voltage up to 400 v, and then step down, the equivalent of two switching power supply. This scheme use only under certain conditions. LED street light isolated/what kind of good? Street lamp lighting material properties depends on the affected by the environment, such as the temperature increases, so the LED electric current will increase; In addition to the increase of the voltage, the LED current will increase. Such as lasting more than rated current work, but also can greatly shorten the service life of LED lamp bead. LED constant current is in the environmental factors such as temperature and voltage change, is also to ensure that the work current value remains the same. LED street lamp power is necessarily general LED street lamp isolation constant-current power supply made 15 w, such as in the LED street lamp power tube, the volume of transformer is very big, it is more difficult. Mainly according to the specific circumstances, normally only do 15 w, the isolation of less than 15 w, the price is very expensive. So, segregation ratio is not high, average length of feng segregation more dominant, the volume can be made smaller and the smallest can do 8 mm high, in fact, not in an isolated way ready, there is no problem. The space allows, of course, also can do isolation power supply.