Features: 1. The controller can protect the inner circuit and good for heat dissipation to avoid thermal overloading. 2. It can provide steady speed and sensitive control of braking and direction changes. 3. The wires and interfaces are durable, and ensure low malfunction of long time use. 4. The interfaces have instruction labels on them for your easy installation. 5. Suitable for electric bicycles, electric tricycles, electric scooters. 6. Good grip, better and comfortable handling, non-slip. Specification: Condition: 100% Brand New Item Type: Brushed Controller Material: ABS Color: As Pictures Shown Brushed Controller: Size: (length x width) 8 cm x 6.5 cm / 3.1 inches x 2.6 inches Brushed motor controller for electric bicycle and scooter Rated Voltage: DC 24 v Current Limit: 28A Rated Power: 500 w Matching Motor: Brushed DC motor Under-Voltage Protection: 20 V Accelerator Size: (length x diameter) 10 cm x 2 cm / 3.9inx 0.8in Revolving throttle accelerator for electric bicycle with power display , 5Led battery indicator. The throttle operates with voltage: DC5V Speed Adjustment Signal: 0.8 V - 4.3 V Power Display Voltage: 24 V DC Power Display: Normal: 23 V up, 3 Green LED Half: 23 V - 20 V, Yellow LED Vacuum: 20 V or less, Red LED Rotation Angle: 0 ° - 70 ° Working Temperature: -20℃ - + 50℃ Fits to 7/8 inch (22.2mm) standard handle bars Cable length is approximately 59 inches (1.5m) Quantity: 2pcs (1 throttle grip and 1 normal grip (matching thumb grip ) Package List: 1 x Brushed Controller 2 x Throttle Grip 1 x Power Line 2 x Key Cable Controller Interface Definition: Battery: coarse black (negative power) / coarse red (positive power) Motor: coarse yellow (Negative motor) / coarse blue (Positive motor) Power switch: Red thin (VCC) / Blue thin Indicator: Red thin (indicator power output) / Black Slim (negative indicator) Brake: Yellow Slim (brake signal) / Black Slim (negative power) Speed regulator: Blue Slim (speed handlebar signal input) / Black Slim (negative power) / red Slim (5V positive power) Charging port: Red Slim (positive charge input power) / Black Slim (negative power) Brake light: Red Slim (positive power) / Black Slim ( negative power) Accelerator Wiring Method: 1. Red Connects to Red Voltage from 4.3 to 5.0 volts 2. Blue Connects to Black or yellow Ground 3. Green Connects to Green, blue or white Speed adjustment signal (between 0.8 and 4.3 volts) 4. Yellow Connects to Positive energy Power display