PST-300-12 300 Watt Pure Sine Wave Inverter, 12VDC-120VAC. This high efficiency DC-AC inverter converts 12 Volts DC to 300 Watts of pure sine-wave AC power at 120 Volts, 60 Hz. The unit comes with detachable cable with 12V plug adapter and cable with battery clamps. Features include overload protection, low battery alarm / shut down, low idle power draw of less than 0.5 Amps. AC power is available from a NEMA-20R GFCI duplex outlet on the front panel. Safety certified to UL standards. If you only need to power a few lights, a radio or other small loads, the 300 watt PST UL series will work great.