CONVERT 12V DC POWER TO 120V AC POWER: 400W Inverter w/ 2 AC outlets and 2 USB ports provide 800 Watt of peak power, great for charging laptop, tablet, pump, TV, DVD player, lights, and more in your car, truck, boat or RV VERSITILE, FAST CHARGING: The PV400USB features two AC outlets, a 2.1A USB port and a 1.0A USB port. Perfect for smartphones, laptops, tablets, GPS units, game systems, and other electronics EASY TO USE: DC jack plugs into the cigarette lighter socket in your car, truck, boat or RV; or Battery Cables connect directly to the battery (always connect red to red and black to black) PREMIUM SAFTEY FEATURES: built-in 40 amp fuse to protect your device. Safe charging design provides protection against overheating, under and over voltage charging, short circuiting, overloads, and overcharging HIGH QUALITY WITH 1-YEAR WARRANTY: Durable housing provides advanced protection from drops and bumps. Integrated cooling fan helps reduce heat and prevents shortages. 1-year Warranty, Free Chicago-Based Technical Support