The Pyle PSWNV480 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 W continuous and up to 480 W 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.