Power:20W,36W,72W Ripple wave(max):5%,2%,0.2Vp-p Current precision:+/-5% Starting time ... temperature, Humidity-40--+80C90%RHStandard for safety:UL13 Class 2,IP62/IP67(Embedment)Withstand Voltage:3KV/ACInsulation Restistane:100 ... EN55015Harmonic current:EN61000-3-2ClassCPin ≥25WElectronmagnetic stamina:EN61000-4-2,4,5,6,8,11Dimensions:120*35*26mm 148 ... 19KG/0.34Kg/0.4Kg Constant current dimming Led Driver