1、Complete Kit: The bike lithium conversion controller kit includes 17A controller, S810 panel, thumb throttle, power sensor wiring, power sensor booster pad, front lamp, tail lamp, brake handle, etc., which are suitable for DIY modification and meet all needs. 2、Good Heat Dissipation: The controller housing is made of premium metal with notch design, which can preserve the internal circuit due to the good heat dissipation function, thus avoiding thermal overload. 3、Good Toughness: The panel uses premium ABS material, which is light and durable, good toughness and waterproof performance, providing better protection for the internal circuit, making it more durable. 4、Stay Informed: The S810 panel can display many useful data on your bike, such as switch buttons, light switches, battery level display and other functions, a small display can keep you informed condition. 5、Suitable: 17A controller kit is suitable for 250W‑350W gear motors, mainly used for electric bikes, electric scooters, folding bikes, etc., easy to maintain, bike lithium battery modification greatly improves riding fun, for cyclists who like a challenge. Item Type: Bike Lithium Conversion Kit Material: ABS, Rubber, Aluminum Alloy, Metal Gross Weight: 1155g / 40.7oz Applicable: 250W-350W gear motor Controller Size: Approx.90 x 50 x 30mm / 3.5 x 2.0 x 1.2in Controller Current: 17A Controller Voltage: DC 36V 48V Controller Speed Setting: 1.1-4.2V Braking: input low level 1 x S810 Panel 1 x Controller 1 x Boost Sensor Wiring 1 x Boost Sensor Boost Pad 1 x Thumb Throttle 1 x Wire 1 x Front Lamp 1 x Tail Light 2 x Brake Handle 1 x Main Control Switch 1 x Instruction