Features: 1.HEAT DISSIPATION:The controller shell is made of aluminium alloy with groove design, which is good for heat dissipation to protect the inner circuit. 2.FUNCTION:The brushless motor controller can provide steady speed and sensitive control of braking and direction changes. 3.SIMPLE INSTALLATION:Simple structure with separate wire, making it easy to use. 4.APPLICABLE FOR:The controller has wide application,suitable for electric bicycles, scooter, etc. 5.SATISFACTION GUARANTEE:If you are not satisfied with our product received, you can apply for unconditional return and refund within 180 days. Specification: Material: Aluminium alloy Working Voltage: 36/48V Rated Power: 1000W Current: 38A Low Voltage Protection: 31/42V Suitable for: electric bicycle, scooter, etc Size: Approx. 190 x 84 x 44mm / 7.5 x 3.3 x 1.7inch Weight: Approx. 676g Package List: 1 x Brushless Controller HEAT DISSIPATION:The controller shell is made of aluminium alloy with groove design, which is good for heat dissipation to protect the inner circuit. FUNCTION:The brushless motor controller can provide steady speed and sensitive control of braking and direction changes. SIMPLE INSTALLATION:Simple structure with separate wire, making it easy to use. APPLICABLE FOR:The controller has wide application,suitable for electric bicycles, scooter, etc. SATISFACTION GUARANTEE:If you are not satisfied with our product received, you can apply for unconditional return and refund within 180 days. ASIN B07W2XN2R8 Brand Name VGEBY1 Item Weight 0.68 Kilograms Part Number VGEBYftqg0wme8i Manufacturer VGEBY1 Package Weight 0.69 Kilograms Item Package Dimensions L x W x H 12.52 x 6.97 x 2.76 inches