PowerDrive RPPD100D 100-Watt DC to AC Power Inverter with USB Port and Direct 12V Plug Continuous AC power output: 100 watts; maximum AC power output (surge): 175 watts Converts 12-volt DC power from your vehicle battery to 110-volt AC power One 3-prong AC outlet USB port with 5 volts DC output 3-position swivel 12-volt lighter plug