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 60 watts continuous, and up to 120 watts peak. For safety, it's equipped with short circuit, overload, high voltage, and low voltage protection. The fuse is rated for up to 5 amps.