... current driver, PF>0.9,Lifetime>30000hours; 4.Superior aluminum PCB and aluminum alloy heat sink,ensure good heat dissipation; 5 ... ? 1. One of the top LED manufacturer in East China; 2. 10 led chips packaging lines, one assembly workshop and all necessary testing ... : We produce all LED lamps in our office building. There are LED tubes,LED ceiling light,LED panel light,LED Bulbs,LED spot lights etc. ...