... ceiling lights 1, 20w or 30w power 2, 100-240v, 50/60Hz 3, 2200-2500LM 4, ... CE & RoHS certificates led down light 30w 20w led ceiling lights VoltageAC85-220VPower frequency50-60HZTHD<9%Power ... , no light pollution ,high directive and uniform brightnessHigh power led 30W Intigrated circuit led.Constant-current source, instant start, the electrical ...