This set (controller+LCD display) only works with sensored brushless DC motor, please pay more attention before placing the order!!! This controller and lcd display must the motor hall sensor and throttle! And the speed limit can works for both pedal assist and throttle . All of our standard LCD and controller sets 1-5 speed for both pedal assist and throttle , all the standard sets works like this. Rated Voltage: 48V Rated : 1000W Limit Current: 21A+-1A 1)Super low noise when up 2)Under-voltage protection 3)Over-current protection 4) With S866 display connector Colour:Photo Color Material:plastic Package Contents: 1 x Ebike Controller Set Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.