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 range 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 encapsulation, providing safety, corrosion resistance, and waterproof performance suitable for temporary submersion High efficiency: The AC/DC buck converter includes a built-in switching regulator module with a conversion efficiency up to 96% Multiple protections: The AC-DC power converter incorporates a micro-processing chip that enables overvoltage, overcurrent, overtemperature, and short-circuit protection with automatic recovery Wide application: The AC-DC 10-28V to 12V converter module is suitable for use with car monitors, surveillance cameras, fans, water pumps, motors, routers, and other compatible devices