Brushless Controller rated current: 25A, cut-off voltage: 40V, suitable for 52V 1200W motor. Dual-drive controller with anti-theft alarm function. Supports maximum speed of 60KM/H (final speed depends on motor compatibility; 60KM/H requires motor support of 1000W to 1200W or higher). Made of aluminum alloy with grooves for protection of internal circuitry and effective heat dissipation to prevent thermal overload. Provides stable speed control and responsive direction changes for a comfortable riding experience. Compatible only with JP controller electric bikes and electric scooters. Appearance and label printing may vary between batches, but this does not affect functionality. Color: Silver. Material: Aluminum alloy. Package Contents: 2x Brushless DC Motor. Only the listed items are included; other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance: +/- 1-3cm.