Our DC to DC converters now have an extended input range. Designed for use on 24-80 volt equipment to provide a regulated 13.8 VDC output. Our HD DC-DC Converter is a 30 Amp, 420 Watt (continuous) unit. Heavy-Duty High Voltage DC to DC Converter with built-In Spike Filter. For operating standard 12 VDC equipment (lights, radios, cellular and tablet chargers, computers) from non-standard electrical systems. With the 24v-12v voltage reducer, you can run 12 volt auxiliary lights or any other 12 volt unit from your 24 volt truck. Is your vehicle ex-military with a 24 volt system? Double battery 24 volt systems are superior in many ways to 12 volt models. Don't even think about converting the entire system to 12 volts. Also, it is not recommended to draw power from one battery only. Just use a converter to step down the voltage to power the 12 volt appliance. The recommended solution for ex-military vehicles or any vehicles with 24 volt electrical systems. We ship regularly to regional Fire Departments using 24 volt HumVees and Deuce and a Halfs. Additional Details ------------------------------ Product description: Our DC to DC converters now have an extended input range. Designed for use on 24-80 volt equipment to provide a regulated 13.8 VDC output. Our HD DC-DC Converter is a 30 Amp, 420 Watt (continuous) unit. Heavy-Duty High Voltage DC to DC Converter with built-In Spike Filter. For operating standard 12 VDC equipment (lights, radios, cellular and tablet chargers, computers) from non-standard electrical systems. With the 24v-12v voltage reducer, you can run 12 volt auxiliary lights or any other 12 volt unit from your 24 volt truck. Is your vehicle ex-military with a 24 volt system? Double battery 24 volt systems are superior in many ways to 12 volt models. Don't even think about converting the entire system to 12 volts. Also, it is not recommended to draw power from one battery only. Just use a converter to step down the voltage to power the 12 volt appliance. The recommended solution for ex-military vehicles or any vehicles with 24 volt electrical systems. We ship regularly to regional Fire Departments using 24 volt HumVees and Deuce and a Halfs.