This power converter is made by the high heat conduction organic silica gel filling and sealing technology, and compatible with multiple automatic protection function, overcurrent, short circuit, overtemperature, waterproof, moistureproof, these distinctive characters make our Power Supply Converter Regulator widely used on Bus, CMB, large trucks, motor, GPS navigation, solar power, photovoltaic energy, bus display, taxi advertising screen, car audio, LCD TV, LED, intercom and monitoring system. DC 12V to DC 24V Step Up Converter. (9-20V Wide Range Input) Max Current 5A 120W. Waterproof 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.