Hama 00039739 is a car power inverter that converts 12V DC power from your vehicle's cigarette lighter socket to 220V AC power, allowing you to use electronic devices like laptops, smartphones, and cameras while on the road. It features a continuous power output of 100W, with a peak power output of 200W for handling brief power surges. The inverter comes with various protection mechanisms, including overload, overvoltage, and short-circuit protection, ensuring safe operation. Additionally, it has a compact and lightweight design, making it easy to store and carry in your vehicle.