Product Parameters: Construction:Brand New,Generic Replacement Product! Input voltage: 100-240Volt 50-60Hz(world wide). Product Feature: 1.No noise,low temperature operation,no spontaneous combustion,no explosion,no fire hazard,stable output,safe to use. 2.Material: Sturdy flame-retardant exterior shell, protects against scratches, bumps, drops, withstands pressure. 3.Industry Quality :Overvoltage, overcurrent, overload, overcharge protection, long working time, quality assurance.