24 Vdc Input 12 Vdc Output Converter 24 - 12 Vdc 8 amps $ 110.00 Converter 24 - 12 Vdc 20 amps $ 169.00 Converter 24 - 12 Vdc - 20 amps $ 320.00 Converter 24 - 12 Vdc - 30 amps $ 415.00 Converter 24 - 12 Vdc - 50 amps $ 940.00