Advanced sine wave controller kit designed for optimal performance in electric bikes. Three selectable operating modes to enhance flexibility and efficiency based on riding conditions and preferences. 40A three-mode controller suitable for 48V-72V UKC1 speed limiter. Compatible with 1500W and 2000W lithium battery modification kits. Utilizes UART 2 communication protocol for seamless integration. Upgrade your electric bike with this versatile controller set that allows you to customize your riding experience. With three operating modes, you can easily adapt to different terrains and preferences, ensuring a smooth and efficient ride. The kit is designed to work with high-capacity lithium batteries, making it an excellent choice for performance enthusiasts. Please note that due to different production batches, there may be variations in product appearance, color, and printed text, but these not affect functionality. Color: Black Material: Aluminum Plastic Package Contents: 1*controller 1*V12 power steering 1*20X throttle 1*UKC1 display 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.