JCMOTO 36V 36 Volt 500W Motor Brush Speed Controller for Electric Bike Bicycle Scooter This is a quality universal 36v 500w brushed controller Fit for 36v 500w brushed motor Controller adaptors waterproof design Suitable for electric scooter, e-bike, tricycle, mini bike, pocket bike, go kart, atv, moped Refer to picture and below "Product Description" for wiring instruction and specifications