Features1Sensitive Speed Control: Electric bicycle 24V 500W brushed motor controller can provide stable speed and sensitive control of braking and direction change. 2Digital Power Display Throttle Grip: Electric bicycles twist throttle handle has cruise function and digital power display, which is intuitive and convenient, and can accurately determine the residual power. 3Multi Safe Protection: The controller housing is made of aluminum alloy, has heat dissipation and can prevent the internal circuit from hermal overload. It also has undervoltage protection, over current protection, stall protection functions to ensure safe use of bicyc, reliable and stable. 4Universal Battery Applicable: Twist throttle handle is suitable for lithium battery, water battery, dry battery and other batteries. Applicable voltage is 12V to 99V. 5Applications: Brushed motor controller and twist throttle handle set is suiable for modification of electric bicycles, scooters, tricycles and other electric bikes.SpecificationItem Type: Bike Motor Controller KitMaterial: Aluminium Alloy, Rubber, ABSGross Weight: 614g / 21.7ozController Type: Brushed controllerController Rated Power: 500WPackage List1 x Controller2 x Twist Throttle Handle2 x Key5 x Wire Plug Sleeve10 x Accessory