Product Description 24 VOLT TO 12 VOLT POWER CONVERTOR Many trucks and boats use 24V power systems that are not compatible with standard 12volt accessores like stereos and radios etc. These quality converters will allow you to run a reasonably sized 12V car-stereo, UHF or other devices from your truck, bus or motorhomes 24V supply. Heatsink (not included) should be used for superior performance . Specifications: Operating voltage: 24 to 12VDC DC Current Draw : 3.00000000A Dc to DC Features include: short-circuit protection and thermal cut-out. PART NUMBER: M038N