Features1Applicable: The 17A 3 modes controller kit is suitable for 350W motors, mainly used for DIY electric bikes, electric scooters, folding bikes, etc. It is easy to maintain, the lithium battery modification of bikes greatly improves the riding fun and is suitable for cyclists who like challenges. 2Retrofit Kit: The bike lithium battery retrofit controller kit includes 17A 3 modes controller, EN05 panel, thumb throttle, power sensor wiring, power sensor booster pad, which are suitable for DIY retrofit and meet all needs. 3Good Heat Dissipation: The controller shell is made of metal with notch design. Due to its good heat dissipation function, it can preserve the internal circuit to avoid thermal overload. 4Waterproof: The panel is made of ABS material, which is light, durable, fine and has good toughness and waterproof performance, providing better protection for the internal circuit and making it more durable. 5Data Display: The EN05 panel has multiple functions, when you ride a bike, the product will display many useful data on your bike, such as switch buttons, light switches, battery power display and other functions, a display screen can help you keep informed of the situation.SpecificationItem Type: Electric Scooter Controller Panel KitMaterial: ABS, Rubber, Aluminum Alloy, MetalGross Weight: 817g / 28.8ozController Size: Approx.95 x 50 x 30mm / 3.7 x 2.0 x 1.2inCurrent: 171AController Speed Setting: 1.1-4.2VApplicable Motor Power: 350WPanel Interface: sm interfacePackage List1 xEN05Panel1 x Controller2 x Brake Handle1 x Boost Sensor Wiring1 x Boost Sensor Boost Pad1 xThumbThrottle2 x Instruction