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. 2Providing Stable Speed: The brushless motor controller can provide stable speed and sensitive control of braking and directional changes. 3LCD Display Panel: LCD display panel can clearly show the state and data, backlight enables you to see screen clearly in dim environment. 4Wide Range of Use: The brushless motor controller with LCD display panel is easy to install and use, suitable for 22.2mm/0.87in handlebars. 5Voltage and Current: Controller box size is 9x5.3x3cm/3.5x2.1x1.2in, DC 48V/60V universial voltage, 350W power, DC 42/53V low voltage, 13A current limit.SpecificationItem Type: Motor Brushless Controller LCD DisplayMaterial: Aluminum AlloyController Box Size: Approx.9x5.3x3cm / 3.5x2.1x1.2inVoltage: DC 48V/60V UniversialPower: 350WLow Voltage: DC 42/53VCurrent Limit: 13AColor: As Pictures ShownWeight: Approx. 438g / 15.5ozPackage List1 x Controller1 x LCD Dispaly1 x Manual