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.Throttle grips with power display and key lock Universal 12v 24v 36v 48v Black Electric Scooter Bike Throttle Grip Beautiful outlook and modern design. Throttle Control Set Three Pin Suit for Electric Throttle, Motorcycle, Scooter. Specification: Style: striae & Round Operating voltage: 5V Adjustment range: Minimum? 4.0V Function: high, medium and low grades governor Package includes : 1x controller + 1x throttle+ 1x Motor. This item is in the category "Industrial\Industrial Automation & Motion Controls\Electric Motors\General Purpose Motors". The seller is "tdpro99" and is located in this country: AU. This item can be shipped worldwide.