The CyberPower CPS150CHI Mobile Power Inverter converts 12V DC automobile power to standard 120V AC home power--up to 150 Watts. Simply plug the inverter into a 12V DC outlet (cigarette lighter outlet) and you're ready to go. It's the perfect solution for powering electronics anywhere a 12V power source is available. It also has full-time surge protection that guards against power fluctuations from vehicle startup and shutdown. The CPS150CHI is ergonomically designed to fit in any standard sized cup holder for convenient placement, but also lays flat for dashboard or seat mounting. The 36" tangle-free cord is equipped with a 2-in-1 auto/airline connector, so you can power your electronics on the road, in the air, or on your boat. It not only has a standard 3-prong home outlet, but comes with a "pass-through" 12V DC cigarette lighter port so you can utilize the 120V AC home power and 12V DC cigarette power at the same time. It's the perfect device to power all your mobile consumer electronics, small appliances, emergency equipment, and portable tools.