... warrant 5.AC/DC Adapter 6V1A AC /DC adapterfeatures:1.input voltage:100—240v AC2.output voltage:6v3.output current:1000mA –2000MA4.over ... CE,KC,FCC,ERP,ROHS,7.Ripple and noise:output voltage 1%8.Operating temperature range:0--40°C9. ... US,etc......... Protection :overtemperature protectionovervoltage protectionshort circuit protection USB adapter suitable for occasions & crowd1.hotels,banks,gift company, ...