MOTOR CONTROLLER w Reverse Function. WYYS controller with Reverse and 3 speed functions. 500 Watt 24 Volt BRAND NEW AND WITH WARRANTY Speed controller for DC Motor, up to 500W, 24 Volts . 28 amps. This can also be used for 400W and 350W systems. For e-scooters, e-bike, e-ATV, Go Karts. This controller may be used for replacement of most Razor, X-treme and other kinds of electric scooters, electric bikes, or E-ATVs. Check that voltage is compatible, motor is of same or less watts and for similarity in size, shape and color. Dimension: aprox 4.5" x 3.5" x 2" Weight: 16 OZ Brand: WYYS Model: 24R Rated Power: 500W This speed controller features functions and connection terminals for: - Battery - Motor - Reverse - 3 speed - Charger - Lock / on-off switch (will turn on/off the controller) - Reverse (will reverse motor rotation) - Brake (will shut off motor) - Battery charge indicator - Tail lamp - Throttle