Ultra-quiet, motor ripple is minimized to achieve no noise, no vibration and comfortable The controller has high conversion efficiency,which can effectively reduce controller temperature rise and extend battery life. Fit For: Electric Motorcycle/E-bike/Scooter/Electric Bicycle/Balance Skateboard Specification: Type:DC Motor/Speed Controller Voltage:DC 36V Rated Power:350W Undervoltage:30V Current-Limiting:8.8A Instruction: Battery display: 33v-36v The first light is long 36v-37v one or two lights long bright 37v-38.5v one or two lights long bright 38.5v or more, one, two, three, four lights Low voltage alarm: The first light flashes when the battery is 33V, and the buzzer sounds 6 . Low voltage alarm speed mode: The speed limit is about 15Km/h. When the power returns to 37V,the throttle must return to the initial position to release the low voltage and return to normal operation. Constant speed : The speed is stable for about 6 seconds to automatically start the control after the is fixed, the throttle can be released; press the brake or push the throttle again to release the control and enter the manual mode. Speed: The low speed is 152km/h; the high speed is 25km/h (maximum) Note:Load has a certain effect on speed. Automatic shutdown: Automatically shut down 10 minutes after no operation. Colour:Black+silver Material:Metal + plastic Package Contents: 1 * Controller 1 * Dashboard 1 * Accelerator 1 * Headlight 1 * Taillight 1 * connecting wire Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.