Ted Voltage:   36Volts Rated power:  800 watts Under Voltage Protection: 20V±0.5V Current Limit:28±1A Usable Motor:  24V500 Watts  Speed Regulator 1-4 V(Throttle ) Operating Conditions:  -25--45 Function: This item Suitable for electric bike & scooter his is brush motor controller.   Plug :   1.Red & Black (large cable) : Battery connections 2.Yellow & Blue : Motor connections      3.Red & Blue : Key Switch(power lock)  (If there is no power door locks,red connection to blue) 4.Yellow & black : brake                        5.Red & Yellow: Brake light                               6.Red&Black(small cable) : indicator light          7.Red, Black & Blue: Speed Regulator 1-4 V(Throttle ) (Red:+5v,Black: -  ,Blue :Signal Wire) 8.Red & Black (small cable): Charger