Power Bright's Ultra-Slim 175W Power Inverter, No. XR175-12, weigh less than 4 oz. Features include a peak load power rate of more than 350 watts with an input DC voltage range of 10V to 15.5V, and an output frequency range of 60 Hz (+/-3Hz). This inverter has a low voltage alarm level at 10.5V (+/- 0.5V). Comes with overload and short protection, including voltage cut-off levels at 15.5V for high voltage, and 10V for low voltage.