Features： 1、48V 1000W: The voltage of the controller is 48V, the rated power is 1000W and it has protection functions such as undervoltage protection, over current protection, stall protection, etc., ensuring the use and safety of the electric bike. 2、Good Heat Dissipation of Controller: The controller shell is made of metal with grooves to protect the internal circuit from thermal overload due to good heat dissipation. 3、Stable Speed and Sensitive Brake Control: The electric bike 48V 1000W motor controller can provide stable speed and sensitive control of braking and direction change. 4、Application of Controller: The 48V 1000W brush motor controller is applicable to electric bikes, electric tricycles, and electric motorcycles, with a wide range of applications. Electric bicycle throttle handle is suitable for 12V‑ 99V electric bikes. 5、Universal Twist Throttle: The electric bike twist throttle is applicable to lithium battery, water battery, dry battery and other batteries. Specification： Item Type: Electric Motor Speed Controller and Throttle Material: Aluminum Alloy, Rubber, ABS Controller Type: Brushed Controller Rated Power of Controller: 1000W Color: As Pictures Shown Weight: Approx. 641g / 22.6oz Package List： 1 x Controller 2 x Twist Grip Throttle 2 x Key 5 x Wiring Plug Sleeve 10 x Accessories