... 3.Over voltage protection 4.Short circuit protection EBIKE controller: soft start, 1:1 pedal assistance, Cruise, ... Middle size.2,Voltage: 48V3,Rated power:450W.4,Maximum Power: 1000W. 5,Maximum Current:22A6,MOSFET: 9pipes.Function brief introduction ... (E-ABS optional)6,Limited speed7,1:1 power-assisted8,Prevent bicycle from running when starting9,Driving ... in near future. 48V 450W EBIKE controller