220v ac to 6v dc power adapter 1.CE,FCC,Rohs 2.over current,short curcuit ... Temperature-20-+85°Coverload protection 115% ~ 135% of the rated output power over load protection Insulation ResistanceDC500V, 100MΩ Place of OriginChinaCertificationCE FCC ... voltage, no low voltage, no output, etc 3.Assembly full inspection: to make sure every unit with power ,without low voltage, without bad ...