Kimdrox DC/ DC Converter Regulator Voltage Reducer 24V Step Down to 12V Max 20A 240W New and high quality;100% waterproof & anti-shock protection Built-in over/under voltage input, overload, overhead, and short circuit full protection Auto-recovery when device is back to normal operating Industry grade DC 24V to 12V step-down converter Applications:Buses, CMB, Large trucks, EMU, Solar Power, Bus LED Display, Taxi advertising screen, Taxi radio Without interference, Car audio, LCD TVs, LED, Intercom and monitoring systems.