Feature 1The 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 2This item is a brushless motor controller, it can provide steady speed and sensitive control of braking and direction changes 3The wires and interfaces are durable, and ensure low malfunction of long time use 4The interfaces have instruction labels on them for your easy installation 5Suitable for electric bicycles, scooter, etcSpecification 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. This item 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 alloy Rated Working Voltage: 36/48V Rated Power: 350W Current: 13A Low Voltage Protection: 30/42V Suitable Motor Phrase Angle: 60 / 120 degree Suitable for: electric bicycle, scooter, etc Size: Approx. 9 x 5.3 x 3cm / 3.5 x 2 x 1.18inch Weight: Approx. 204g Package List: 1 x Brushless Controller .wang-edit-text{ font-family:'Arial' important; } .wang-edit-text table { border-top: 1px solid 000; border-left: 1px solid 000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000; border-right: 1px solid 000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }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.