... UL,TUV ,GS3.Traditional 20 W project-light lamp installation a foot4.Protection function: short circuit, overload, over-voltage, ... (W)*25(H) mmpackage0.25Kg*40pcsNote1,in the absence of special note, all the parameters in the input for 220 VAC rated load, ... 28 °c environment temperature measurement2,the constant current output voltage is 50%-100 ...