... 13A-18A 4,MOSFET: 6 pipes. 48V/350W Electric Bike Controller 10USD/PCS Specifications 1,Voltage: 48V 2 ... -18A 4,MOSFET: 6 pipes. 48V/350W Electric Bike Controller 12USD/PCS Specifications 1,Voltage: 48V 2 ... -23A 4,MOSFET: 9 pipes. 60V/350W Electric Bike Controller 12USD/PCS Specifications 1,Voltage: 60V 2 ... 1:1 power-assisted 8,Prevent bicycle from running when starting 9,Driving further for power-saving ...