Features1Easy to Operate: LCD instrument socket can be connected to the instrument interface of the controller to realize the function. 2Scope of Application: Electric bicycle brushless motor controller is easy to install and use, LCD display, suitable for 22.5mm/0.9in handlebars. 3Heat Dissipation Function: Due to the good heat dissipation function, the internal circuit can be protected to avoid thermal overload. 424/36/48V 350W Controller: Shell is made of metal with groove design, which is sturdy and durable and can be used for a long time. 5Operation Mode: When the motor Hall is normal, it runs in sine wave mode. When the motor Hall is damaged, it will automatically switch to square wave mode. When the motor Hall is damaged or the motor has no Hall, it runs in the no Hall mode.SpecificationItem Type: Controller LCD Instrument KitColor: As Pictures ShownMaterial: Aluminum AlloyPower: 350WCurrent Limit: 13ALow Voltage: DC 19/30/42VVoltage: 24V/36V/48V UniversalWeight: Approx.469g/16.9ozController Box Size: Approx. 9x5.2x3cm/3.5x2.0x1.2inPackage List1 x Controller1 x Instrument1 x Manual