Welcome to the store! Modified accessories for electric scooters with lithium batteries for bicycles. The 48V 52V 60V 72V-40A sine wave three-mode 15-tube controller must be used with instruments with communication protocol No. 2. The controller is a sine wave three-mode controller, which matches with Hall or non-Hall brushless motors. Applicable to 48V1500W 48V2000W 52V1500W 52V2000W 60V1500W 60V2000W 72V1500W 72V2000W with Hall or non-Hall brushless motor. Specifications: Type: three-mode 40A full-normal controller Boost: 1:1 Current: 40+1A Rated voltage: 48V/72V Braking input: low level Field effect transistor: 15 tubes Due to different batches, there may be differences in product appearance, color, and printed text, which does not affect the use. Color: Black Material: aluminum alloy Package Contents: 1 x Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3 cm. Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will give you the best solution!