Electric Bike 15A Controller 36V 48V Common Speed Controller with LED S800 Display Panel for 250W 350W Motor black.Feature: 1. Packing List: Electric bike conversion kit include 15A controller, LED S800 instrument, 130X thumb throttle, 8C speed assist sensor. 2. Controller Housing: Made of high quality metal with groove design, it can protect the internal circuit due to good heat dissipation, thus avoiding thermal overload. 3. Durable Material: Using ABS material, it is light, strong and durable