av91在线I成人在线观看网址I91av123I国产精品免费视频网站I久久99精品国产.久久久久久I国产拗女一区二区三区I人人爽影院I成人午夜影院在线观看Iass日韩年轻美女picsI东京一本加勒比天天草懂色欧美Iav高清电影资源I在线激情电影I丝袜美女套图I永久一级传奇五月天I亚洲精品97久久久IXXX视频无码一区二区I91片网I麻豆传媒0103

The split type solar street lamp refers to the solar panel and LED lamp in the lamppost, the colloidal battery and the solar street lamp controller at the bottom of the lamp pole. As the distance of the controller distance to the LED lamp is far, up to 20 meters high, the driving LED lamp is driven by the boost and constant current, and the high voltage small current drives the LED lamp, which greatly reduces the loss of the line and improves the efficiency of the system.