Features1Good Heat Dissipation: The controller shell is made of high quality metal with groove design. Due to its good heat dissipation function, it can protect the internal circuit and avoid thermal overload. 2High Sensitivity: The brushless motor controller can provide stable speed and sensitive control of braking and direction change. 3LCD Display: The LCD screen can clearly display the status and data. The backlight allows you to clearly see the screen in a dark environment. The buttons are operated quickly and easy to use. 4Easy Operation: Electric bicycle controller set, easy to install and operate, the voltage is 36 / 48V, power is 1500W, it is suitable for your electric bicycle. 5Widely Application: This electric bicycle conversion kit is equipped with speed control throttle handle, which is widely applicable to 22.5mm bicycle handles.SpecificationItem Type: Electric Bicycle Controller SetMaterial: Aluminium AlloyController Box Size: Approx. 18 x 8.5 x 4.5 cm / 7.1 x 3.3 x 1.7 inWeight: Approx. 1175 g / 41.4 ozPower: 1000WCurrent Limit: 38APackage List1 x Controller1 Pair x Throttle Handle2 x Keys1 x Manual