Specification: Battery Voltage: 48/72V 1500W Brake: High/Low Electrical Level Phase Angle 60° /120° Automatic Identification Compatibility: Suitable for electric bicycles, scooter, etc. Features: The brushless controller motor excellent operation efficiency and the low speed torque, speed accuracy. The brushless speed motor controller provides low motor running noise, which eliminates tire noise. Aluminum alloy shell, better heat dissipation effect, can secure the inner circuit to avoid thermal overloading. Simple structure with separate wire, making it easy to use. Package Includes: 1 x brushless controller