Features1Housing Design: The controller housing is made of metal with a flute design. Due to its heat dissipation function, it can keep internal circuitry safe, thereby avoiding thermal overload. 2Reliable Material: It is made of ABS material, which is lightweight, durable, and finely crafted; It has toughness and waterproof performance, providing better protection for internal circuits, making it more durable. 3Application Situation: The product is mainly applicable to 24V250W, 24V350W, 36V250W, 36V350W, 48V250W, 48V350W brushless motors. 4Product Performance: The controller is a sine wave the 3 mode examination controller, matched with brushless motors with and without Hall, and has self learning function. 5Main Uses: It is used for DIY electric bikes, electric scooters, etc; It is easy to maintain, and lithium battery modification of bikes greatly improves riding pleasure. It is suitable for cyclists who like challenges.SpecificationItem Type: Motor brushless controllerWeight: 530.00g/18.69ozProduct Material: Aluminum alloy, ABSMaximum Controller current: 17 1AController Power: 250W, 350WPackage List1 x Controller1 x Meter2 x Instructions