... temperature:-40-+50 degrees 4.CE,REACH,UL 5v led transformer FEATURE:1.Wide range of output power to maintain high ... even the load changes.("CCE"for short)4.Automatic clamping circuit protection,a special protective function,never overvoltage.5.Suitable ... weather,working temperature range:-40 degrees +50 degrees6.Protection:short circuit,over current,over load,over temperature. 7.Waterproof grade:IP67 ...