Features: 1. This is a non-isolated DC regulated power supply module which can provide stable performance 2. 100% full power, it has high stability output, the conversion efficiency is up to 92-96% 3. It is made of die-cast aluminum alloy casing which is sealed with high quality thermal silica gel, small size and easy to install 4. Wide voltage input, built-in overcurrent, overvoltage, over-stable, open circuit and other automatic protecting functions 5. Long service life, it has 100,000 hours of service life. Specification: Condition: 100% Brand New Input Voltage: 24V DC Input Voltage Range: 18-36V DC Output Voltage: 12V Output Current: 40A Output Rated Power: 480W Output Peak Power: 130% No-Load Current: < 20mA Operating Temperature: -35℃ to +80℃ Waterproof Rating: Ip68 Heat Dissipation Method: Natural Heat Dissipation in Die-Cast Aluminum Housing Package List: 1 * Step Down Converter Wiring: Input: red line (+) positive, black line (-) negative Output: yellow (white) line (+) positive, black (-) negative (Note: The product has no polarity protection. Please carefully connect the wiring carefully. If the connection is wrong, the power supply will be damaged.)