Trustworthy: These 12v Power Adapter 5A 120W 150W max power are available to power almost all of the common electronic vehicles, such as air Compact, and are portable, easy to carry and store thus making them reliable to continue working all the time Knox Gear AC To DC Power Adapter transforms 100V~120V AC domiciliary current to 12 Volts DC. The unique power adapter is used in our daily lives like car cleaners, car TV vehicles, and power amplifiers, etc. Also used in cigar lighter sockets and advantageous in homes, offices, etc