Dual input voltage: AC 110V/220V. There is a switch choose the proper voltage before use. Protection: Shortage Protection, Overload Protection, Over-voltage Protection:115%-135%,Action output cut-off Reset:Auto Reset or fuse,Smart device surge protection for Shortage Protection, Overload Protection, Over Voltage Protection. Weight(1500w):4.85 LBS; Size: 9.45 X 4.9 X 3 INCH(L*W*H) /Weight(1000w):3 LBS; Size: 9.6 X 4.9 X 2.6 INCH(L*W*H)One year warrant.