Simply insert this 100W DC to AC inverter into your vehicle socket-cigarette port for continuous 100 watt power. This car adapter inverter provides DC 12v to 110v AC power while you travel. Pivoting insert lets you choose the power inverter angle. Power multiple devices using the 3-prong outlet and 2 USB ports on this car inverter. The portable size of this 12v socket inverter makes it easy to switch use between truck or car. This device provides electric power while your car motor is running. PowerDrive provides an online calculator to help you determine wattage needs. This 100W power inverter provides 100W continuous power output (200W surge capacity).