AC-DC power converter: input voltage is 10-28V AC, output voltage is 12V DC; maximum output current is 5A; no-load current is 10mA and operating temperature is -40 degrees Celsius to 80 degrees Celsius Waterproof design: IP68 rated for protection against dust and water, the 10-28V to 12V voltage regulator features a flame retardant plastic housing and epoxy resin potting, providing safety, corrosion resistance and waterproof performance suitable for temporary underwater use High conversion efficiency: The AC/DC buck converter includes a compact built-in switching regulator module with a conversion efficiency up to 96% Multiple protection functions: The AC-DC power converter incorporates a micro-processing chip that enables automatic protection against over voltage, over current, over temperature and short circuit Wide range of applications: The AC-DC 12V power converter module is suitable for use with car monitors, surveillance cameras, fans, water pumps, motors, routers and other compatible devices