I have a PV Solar 48 Volt battery bank, which can reach about 60v when charging. I want to connect and intermittently run a 12v, 5 amp blower motor to the 48 volt battery bank. I need to step down from the max voltage (60v) to the 12 volts the motor can handle. The DC motor is 4.4 amps when running. Do you have a suggestion with one on your products that would allow me to do this?