Features1Material: The controller housing is made of high quality metal with groove design, which is durable. 2Protection Function: Due to the good heat dissipation function of the controller, the internal circuit can be protected to avoid thermal overload. 3Brushless Motor Controller: It can provide stable speed and sensitive control of braking and direction changes. 4Simple Installation: The 34V/48V 1000W electric bicycle motor brushless controller is easy to install and use. 5Application: The LCD display thumb shifter is suitable for 22.5mm / 0.9in handlebars.SpecificationItem Type: Motor Controller with LCD Shifter Material: Aluminium AlloyProduct Color: As Pictures ShownController Box Length: Approx. 18.1cm / 7.1inController Box Width: Approx. 10cm / 3.9inController Box Height: Approx. 3cm / 1.2inProduct Weight: Approx. 875g / 30.9ozVoltage: 36V/48V universalPower: 1000WCurrent Limit: 38APackage List1 x Controller1 xLCDDisplayThumbShifter1 x Manual