Features： 1、Complete Kit: Bike lithium battery modification controller kit includes controller, LCD5 panel, accelerator dial, power sensor wiring, power sensor assist sheet, one tow five connecting lines, there are many kinds of sets, suitable for DIY modification by yourself, to meet all needs. 2、Heat Dissipation Function: The controller shell is made of metal with notch design, which can preserve the internal circuit due to the good heat dissipation function, thus avoiding thermal overload. 3、Waterproof: The panel is made of ABS material, which is light, strong and durable, with fine workmanship, good toughness and waterproof performance, providing better protection for the internal circuit and making it more durable. 4、LCD5 Panel: LCD5 meter has multiple functions, while cycling, the product will display many useful data on your bike, such as switch buttons, light switch, battery level display and other functions, a display screen can keep you informed of the situation. 5、Applicable Products: 15A controller kit for 250W motors, main use: DIY electric bikes, electric scooters, folding bikes, etc., easy to maintain, bike lithium battery modification greatly improves riding fun, suitable for those who like challenges cyclist. Specification： Item Type: Electric Bike Motor Controller Kit Material: ABS, Rubber, Aluminum Alloy, Metal Gross Weight: 818g / 28.9oz Application: Suitable for 250W motor matching communication protocol products for KT (commonly known as the No.1 communication protocol) Controller Size: Approx.80 x 50 x 30mm / 3.1 x 2.0 x 1.2in Maximum Current: 15±1A Controller Rated Current: 7A Controller Speed Setting: 1-4.2V Applicable Motor Power: 250W Brake: Input low level Package List： 1 x Controller   1 x LCD5 Meter 1 x Throttle Dial 1 x 8C Power Assist Sensor Wiring 1 x 8C Power Assist Sensor Power Sheet 2 x Brake Lever 1 x One Tow Five Connecting Line   2 x Instruction Manual