Features1Applicable: The 26A 3 modes controller kit is suitable for 500W750W motors, mainly used for DIY electric bikes, electric scooters, folding bikes, etc. It is easy to maintain, the lithium battery modification kit of bikes greatly improves the riding fun and is suitable for cyclists who like challenges. 2Retrofit Kit: Includes 26A 3 modes controller, S900 panel, thumb throttle, power sensor wiring, power sensor pad, controller bag, power off brake handle, 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. 5Display Panel: The S900 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:ElectricBikeControllerPanelKitMaterial: ABS, Rubber, Aluminum Alloy, MetalGross Weight: 1276g / 45.0ozController Size: Approx.120 x 60 x 35mm / 4.7 x 2.4 x 1.4inCurrent: 261AController Speed Setting: 1.1-4.2VApplicableMotorPower: 500W-750WPackage List1 x Controller1 x Controller Bag1 x Controller Manual1 x S900 Panel1 x Panel Instruction2 x Power Off Brake Handle1 x Thumb Throttle1 x Power Assisted Disk1 xPower Assisted Line