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 models that provide 100% reliability of the power converter 3.Built-in over/under voltage input, overload, overheat, and short circuit full protection, more safer to use 4.With preset voltage memory function and power fail preset safeguard function 5.High quality metal shell, anti-seismic and corrosion resistant, durable for long time use Specification: Features:_x000D_ _x000D_ 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. _x000D_ High efficient switch-mode voltage regulation models that provide 100% reliability of the power converter. _x000D_ Built-in over/under voltage input, overload, overheat, and short circuit full protection, more safer to use. _x000D_ With preset voltage memory function and power fail preset safeguard function. _x000D_ High quality metal shell, anti-seismic and corrosion resistant, durable for long time use. _x000D_ 3 input wires and 3 output wires, easy to install, but professional installation is recommended. _x000D_ _x000D_ Specifications:_x000D_ Material: Iron_x000D_ Color: Black_x000D_ Input Voltage: 21V-28V_x000D_ Output Voltage: 12V_x000D_ Output Current/Rated Power: 5A/60W, 10A/120W, 15A/180W, 20A/240W, 30A/360W, 40A/480W (optional)_x000D_ Battery Loss Without Load: 90%_x000D_ Working Temperature: 0 - 40_x000D_ Voltage Alarm: 20V_x000D_ Over-temperature Protection: 55 - 77_x000D_ Size: as picture show_x000D_ Package Weight: 322-737g_x000D_ _x000D_ Package List:_x000D_ 1 * DC 24V to 12V Power Converter PackageList: