I would like to control a pump. The pump rating is 12 volt 60watts. The pump mfg says to use a 12 volt power supply of 5 - 12 amps but AT LEAST 5 amps. This pump has a pressure turn off at 116 psi and the mfg states that the pump will not make maximum pressure with less than 5 amps.
So the question becomes, to be able to switch this pump on and off based on some sensor reading what would be considered best practice: transistor, MOSFET, or relay?