A DC-DC Converter (also referred to as a Voltage Reducer) is a very important component when reducing a range of voltage down to a usable 12-volts, which is required for many vehicle accessories and electronic devices. The DC-DC Converter provides excellent battery protection, and converts your 24-, 36- or 48-volt batteries to 12 volts. DC-DC Converter Kit for Golf Carts 24V 36V 48V 350 WATT/30 AMP Used on all electric golf carts Run everything from LED lights, stereos, fog lights, etc Converts a direct current voltage from a different voltage level to another 48V-12V --- 36V-12V .