Features1Applicable Motors: Including various brands of high speed, differential, hub, toothed, toothless, brushless motors. 2Dual Mode: Intelligent identification of motor Hall state, switch working mode, hall operation when the hall is normal, switch to no Hall operation when damaged. 3Easy to Install: The electric bicycle brushless motor controller is easy to install, LED display design, suitable for 22.2mm / 0.9in handlebars. 4Easy to Use: Easy to use and fine workmanship. Without any difficult requirements even though you use it for the first time. 5Manufacturing Material: Made of high quality aluminum alloy, it is durable and strong, which undoubtedly extends its service life. 36V voltage, 450W power, 30V low voltage, 23A current limit.SpecificationItem Type:450W Brushless Motor Controller KitWeight: Approx.637g / 22.5ozMaterial: Aluminum AlloyController Box Size: Approx.11.4 x 8.5 x 4.5cm / 4.5 x 3.3 x 1.2inPower: 450WCurrent Limit: 23AHandlebars Size:Approx.22.2mm/0.9inPackage List1 x Controller1 xMeter1 x Manual