Cobra CPI 480 400-Watt 12-Volt DC to 120-Volt AC Power Inverter with 5-Volt USB Output (Certified Refurbished) This Certified Refurbished product is tested & certified by Cobra to work like-new. The product includes all original accessories, and is backed by a 90 day warranty. 400 W Continuous Power Handling 2 Grounded AC Receptacles Thermal Shutdown and Reverse Polarity Protection 5v USB output