Bapdas 500W Power Inverter Converter DC 12V to AC 110V Car Charger with 4.2A 2 USB Ports Car Power Adapter-Red Premium 500W Power Inverter with 2 USB ports and 2 AC outlets. Dual USB ports can charge most phones and tablets simultaneously (Max 4.2A total output), while two grounded AC outlets (500-550W each) provide up to 1000W for larger devices Aside from the two 110V AC port, it also features two USB ports with built-in SMART chip that can identify the attached devices to provide the maximum output up to 2.1A Perfect for charging a vast range of devices while on the road, and also great for camping, field work, vacations, road trips, and even charging household items.Comes with battery clamps and cigarette lighter adapter.It's the essential addition to your emergency travel kit Safe charging design provides protection against, overheating, under and over voltage charging, short circuiting, overloads, and overcharging 18 months warranty and 100% Customer Service. Caution! When you power for over 150W electric devices, you must connect from battery, or might break your car fuse