INSTRUCTION: (1)No refitment to car. (2)Connect two of the inverter connectors with the car battery and then plug the electrical apparatus into the power inverter plug (3)How to change the fuse:turn the front of plugger in anti clock direction to change new fuse. Specification: (1)Input voltage:DC12V/DC24V (2)Output voltage:AC230V/AC110V (3)Output frequency:50Hz/60Hz (4)Output power:200W (5)Twinkling maximum power:400W (6)Woring efficency:more than 90% (7)Low voltage alarm and shutdown. (8)Over voltage shutdown. (9)Over load protect. (10)Short-circuit protect. (11)Over heat protect. (12)Reverse polarity protect. (13)Advanced heatsink design and optimum component layout. (14)England,Europe , America,Asia and other plug style for your choice (15)LED red/green indicator. (16)Super Surge capacity to start difficult loads.