Over Charge ProtectionShort Circuit ProtectionLight Weight Charger20W PD Fast ChargerOverviewSpecification: Model No: PW-GN20UK-BK Input : AC100v-240V, 50-60Hz, 0.5A Max Output :(PDO)3.3-11V/2A (Max20W) Total Output power :20W Material :ABS Color :Black weight :47g Dimension :60mm,48mm,43mm..