久久9精品区-无套内射无码,狠狠色噜噜狠狠狠狠7777米奇,婷婷中文字幕综合在线,免费无码中文字幕a级毛片,天天天天躁天天爱天天碰,亚洲热妇无码av在线播放,亚洲成在人线在线播放无码,亚洲精品成人网线在线播放va,久久久久亚洲精品中文字幕,国产成本人片无码免费2020

Welcome to Hangzhou Huatai Intelligent Technology Co., Ltd.!
Language:

LED lighting useful information

LED lighting useful information

LED (Light Emitting Diode). There are two types of LED lighting; Mains voltage and Low voltage, both of which operate on DC voltage via converters, either in the lamp itself or in the Driver. 

Mains voltage LED lamps are simple and can be used to replace a conventional light source, when they both have the same lamp holder requirements. (The most popular change is using a GU10 LED in a GU10 fitting. Here you will be substituting LED for a Halogen light source, so the level of illumination will be much lower). 

Low voltage LED lamps require a transformer (Driver). The transformer converts the 230 volts into either usually 12 or 24 volts DC. The number of lamps that can be used on a transformer is dependent on the total wattage of the lamps, which should be less than that of the total wattage capacity of the transformer. 

LED lighting works by passing a current through a diode element. Where a conventional lamp heats up a filament, which then glows, an LED gives off light when current flows through it, with almost no heat generated. An LED runs cool and is great where heat is an issue.

av网站大全免费在线观看| 亚洲综合欧美在线| 亚洲人成网站18男男| 日本在线一区二区免费| 插鸡网站在线播放免费观看| 国产成人精品电影在线观看| 国产精品青草视频免费播放| 中文字幕视频二区三区| 国产在线观看91一区二区三区| 亚洲av毛片在线免费观看| 毛片无码国产| 国产最新地址| 日韩一区二区,亚洲一区二区视频| 色婷婷一区二区三区久久亚洲| 国产一区二区三区亚洲avv| 在线观看精品视频网站| 久久综合网天天 | 中文字幕精品乱码一区| 少妇激情av一区二区三区| 国产97在线 | 免费| 亚洲ⅤA中文字幕无码| 久久久精品国产三级精品| 成人免费a级毛片无码片2022| 国产午夜精品理论片| 久久久久亚洲AV无码专| 亚洲一区亚洲二区中文字幕| 国产av无码专区亚洲精品| 在教室伦流澡到高潮hgl视频| 亚州精品无码人妻久久| 日本久久黄色高清视频| 精品国产精品三级精品av网址| 国产精品制服| 女的把腿张开男的猛戳出浆| 成人影院视频在线播放| 欧美牲交a欧美牲交aⅴ| 熟妇五十路六十路息与子| 加勒比熟女精品一区二区av| 亚洲精品人成中文毛片| 九月婷婷人人澡人人添人人爽| 中文字幕久久久久久精| 加勒比av在线一区二区|