PMW Power Technology - Rating Load:20A.With 4 Ways Protections (short circuit, over load, high voltage and low voltage) - Converse Efficiency: 87%.Converting efficiency: >85% - Dimensions: 4.5'' x 4.5'' x 1.8''.Input Voltage:24VDC.Output Voltage: 12.5v-12.8v DC This power step down converter lets you use 12 V appliances in vehicles that normally supply 24 V of power. Now you can use your car stereo, CB radio, fog lights, etc. in your truck, RV, or bus! Get standard cigarette lighter voltage from your 24 V battery setup. This unit is capable of outputting 240 watts continuous, and up to 480 watts peak. For safety, it’s equipped with short circuit, overload, high voltage, and low voltage protection. The fuse is rated for up to 20 amps.