Power on / off functionality of the power supply, which will automatically turn off after 5 minutes of inactivity. The four-digit Smart Power display provides an accurate representation of the battery charge status to the user. It features high, medium, and low settings with a gear switch and gear indicator designed to simulate torque enhancements, along with a Gear Memory Function that remembers the gear state upon shutdown. It includes a pulse function that operates at 6 Km/h, with a light that flashes during the impulse, assisting the user while operating a vehicle for ease of driving. The low voltage indication function alerts the user with a flashing indicator when the battery voltage is low. Utilizing five lines of digital communication, it allows for versatile parameter self-adjustment, enabling users to modify settings such as motor parameters and speed according to various models. The instrument offers excellent compatibility, allowing different units to directly exchange data parameters. The power supply voltage options are 36V and 48V. Upgraded components include waterproof connectors to withstand changing weather conditions. Color: Black Material: Composite Material Size: 6x8x11.5cm Package Contents: 1 * Ebike-Controller Display Only the above package contents are included; other products are not part of this package. Note: Due to lighting and different display settings, the item's color may appear slightly different from reality. Measurement error is permitted within +/- 1-3cm.