Bicycle lithium battery conversion kit: 36V, 48V, 52V, 35A tri-mode controller + S-100 color LCD instrument display set. Sine-wave tri-mode controller compatible with brushless motors with or without Hall effects, with self-learning function. Compatible with 36V/1000W, 36V/1500W, 48V/1000W, 48V/1500W, and 52V/1000W/52V/1500W brushless motors with or without Hall effects. Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Color:Black Material:Aluminium Package Contents: 1 * Display Meter 1 * 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.