... 120MV 5V 3A SWITCHING POWER ADAPTERShenzhen Hengfu Co.,Ltd is a professional manufacturer of AC DC Adapter, switching power supply,waterproof power supply ... requirement (UL,RoHS,PSE,GS,CE,FCC,CE,EK,SAA,BS Approved).2. Sample: you can get samples within 7 ... % relative humidity (Non- condensing)MTBF............ 50K hours (25°C , Full load and rated voltage input) Product Safety RequirementStandards ...