... frequency 50HZ SUVPR DY100 100W AC 220V USB Car Multifunctional Power Inverter LF-0815Specifications:· Input voltage:12V· Output voltage: ... · Protection function : Shortcircuit\overload\undervoltage\overvoltage\overheating The inverter can convert 12V, DC of automobile to 220V/50HZ ... etc. and their batteries. For player MP3, player MP4,Charge up cellphone, Digital camera, DV vidicon, Palm computer, ...