Specification: Item Type: Scooter Controller Material: Stainless Steel Applicable Model: D51448.06 Output: 24V Size: Approx. 17 x 12.3 x 5cm / 6.7 x 4.8 x 2in Usage: Has excellent thermal properties, which should ensure that the controller's bottom plate is firmly fixed to the metal part of the motorcycle chassis The controller shall be equipped with connector grooves that prevent water from entering and staying.It is recommended that the connector is not placed on top of the installation Operation Test: The test shall be carried out on a horizontal floor with at least one meter of open space around the scooter 1. Turn on the scooter. 2. Check whether the status indicator remains on or blinks slowly after half a second 3. Drive forward slowly until you hear the sound of electromagnetic brakes.The scooter may be starting to move. 4. Take off the gas pedal immediately.You must be able to hear the solenoid brake in several seconds. 5. Repeat the test in the opposite direction. Package List: 1 x Scooter Controller 1 x Manual 4 x Screw 8 x Bolt