Features:The controller shell is made of aluminium alloy with groove design, which can protect the inner circuit due to good heat dissipation feature to avoid thermal overloading.Thisitem is a brushless motor controller, it can provide steady speed and sensitive control of braking and direction changes.The wires and interfaces are durable, and ensure low malfunction of long time use.The interfaces have instruction labels on them for your easy installation.Suitable for electric bicycles, scooter, etc.Specification:Material: Aluminium alloyRated Working Voltage: 36/48V Rated Power: 350W Current: 13ALow Voltage Protection: 30/42V Suitable Motor Phrase Angle: 60 / 120 degreeSuitable for: electric bicycle, scooter, etc Size: Approx. 9 x 5.3 x 3cm / 3.5 x 2 x 1.18inchWeight: Approx. 204g Package List:1 x Brushless Controller .Note:The product does not have a cord for the display.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.