DC 12v to 24v Step up Converter Regulator 10A 240W Power Supply Adapter for Motor Car Truck Vehicle Boat Solar System etc.(Accept DC9-20V Inputs) DC 12V to DC 24V Step Up Converter. (9-20V Wide Range Input) Max Current 10A 240W. Waterproof alloy housing makes the converter ideal for use in a wide range of applications including vehicles, security systems, hospital equipment, telecommunications etc Built-in over-voltage, under-voltage, overload, over-heat and short circuit protection The length of the line is about 12CM, slim, small volume, easy installation. High quality and performance. 3 Year Warranty.