Features 1、Allows you to convert DC 24V voltage to DC 12V voltage, so as to powering 12V devices such as auto stereo, subwoofer, GPS navigator that can be used in 24V vehicles 2、High efficient switch-mode voltage regulation model that provide 100% reliability of the power converter 3、Built-in over/under voltage input, overload, overheat, and short circuit full protection, more secure to use 4、With preset voltage memory function and power fail preset guard function 5、Premium metal shell, anti-seismic and erosion proof, durable for long time use Specifications: Features: Allows you to convert DC 24V voltage to DC 12V voltage, so as to powering 12V devices such as auto stereo, subwoofer, GPS navigator that can be used in 24V vehicles. High efficient switch-mode voltage regulation model that provide 100% reliability of the power converter. Built-in over/under voltage input, overload, overheat, and short circuit full protection, more secure to use. With preset voltage memory function and power fail preset guard function. Premium metal shell, anti-seismic and erosion proof, durable for long time use. 3 input wires and 3 output wires, easy to install, but professional installation is recommended. Specifications: Material: Iron Color: Black Input Voltage: 21V-28V Output Voltage: 12V Output Current/Rated Power: 5A/60W, 10A/120W, 15A/180W, 20A/240W, 30A/360W, 40A/480W (optional) Battery Loss Without Load: <0.1A Maximum Power Amplifier: >90% Working Temperature: 0℃ - 40℃ Voltage Alarm: 20V Over-temperature Protection: 55℃ - 77℃ Size: as picture show Package Weight: 322-737g Package List: 1 * DC 24V to 12V Power Converter Package List