Simin Trucker 400 Watt DC-to-AC Vehicle Power Inverter 12-volt DC to 120-volt AC power inverter/converter for trucks with cigarette socket plug 400 Watts continuous / 800 Watts peak power output / modified sine wave Two (2) 120VAC plug sockets and One (1) USB 5-VDC socket / cigarette lighter plug and battery clamp wires included Built-in cooling fan plus automatic shutdown protection (10V to 15V range) Perfect for powering laptops, printers, cell phones, MP3 players, and any small to mid-size portable equipment