... -in Drive Power Supply 2.CE,UL,TUV ,GS3.Traditional 20 W project-light lamp installation a foot4.Protection function: short ... of automatic recoveryEnvironmentWorking temperature, humidity-30~55°c (full load)20%-80%RHStorage temperature, humidity-40~80°c 10%-95%RHInsulation ... 50%-100% rated voltage, accord with LED lighting work area 20W drive power