Features1Good Heat Dissipation: The brushless controller adopts groove design, which has good heat dissipation performance and can protect the inner circuit to avoid thermal overload. 2Durable: The panel is made of ABS material, which is light, sturdy and durable, with fine workmanship, good toughness and waterproof performance, providing better protection for the internal circuit and making it more durable. 3Multifunctions: When you ride a bicycle, panel will display many useful data on your bicycle, such as switch buttons, light switches, battery level display and other functions, a panel allows you to keep abreast of the situation. 4Stable And Reliable: The controller has protection functions such as undervoltage protection, overcurrent protection, stall protection, etc., which ensures the use and safety of electric bicycles. 5Main Uses: For DIY electric bicycles, electric scooters, electric folding bikes, etc. Easy to maintain, bicycle lithium battery modification greatly improves the fun of riding, suitable for cyclists who like challenges.SpecificationItem Type: Brushless Controller Kit Product Material: Aluminum Alloy, ABSWeight: Approx. 405g / 14.3ozCurrent Limit: 28AController Power: 500WPackage List1 x Controller1 x Panel1 x Instruction Manual