1、Manufacturing Material: The controller housing is made of high quality metal material, groove design, with good heat dissipation function, can protect the internal circuit, so as to avoid thermal overload. 2、Stable Speed and Sensitive Control: Brushless motor controllers provide steady speed and sensitive control of braking and directional changes. 3、Easy to Install and Use: The electric bicycle brushless motor controller is easy to install and use, equipped with LCD display and suitable for 22.5mm / 0.9in handlebars. 4、3 Mode Sine Wave Controller: 3 mode sine wave controller, when the motor hall is normal, it runs in sine wave mode; when the motor hall is damaged, it automatically switches to square wave mode; when all the motor halls are damaged or the motor has no hall, it runs in hall free mode. 5、Easy to Use: Without any difficult requirements even though you use it for the first time. Item Type: 350W Controller Kit Weight: Approx.530g / 18.7oz Material: Aluminum Alloy Controller Box Size: Approx.9 x 5.2 x 3cm / 3.5 x 2.0 x 1.2in Power: 350W Current Limiting: 13A 1 x Controller 1 x Instrument 1 x Manual