Enhance the performance of your electric bicycle with this high-quality Sine Wave Controller, crafted from durable aluminum alloy featuring a groove design for superior heat dissipation. This advanced controller ensures stable speed control, responsive braking, and smooth direction changes, delivering an exceptional riding experience for 750W brushless motors. Designed with fully waterproof connectors and high-performance wiring, it guarantees long-lasting durability and reliable operation in various weather conditions. Key Features: · **Premium Aluminum Alloy Shell with Groove Design:** Provides excellent heat dissipation to protect internal circuits and prevent thermal overload, ensuring consistent performance and longevity. · **Stable Speed Control:** The brushless motor sine wave controller delivers smooth and stable speed regulation, along with sensitive braking and direction change control for enhanced safety and ride comfort. · **Waterproof Connectors:** Equipped with fully waterproof connectors and high-quality wires, this controller withstands harsh weather conditions and reduces failure rates for dependable long-term use. · **Easy Installation:** Comes with clear wiring identification instructions, making installation straightforward and hassle-free, suitable primarily for 750W brushless motors. · **Compatibility:** Designed to work with products matching the KT series communication protocol, ensuring seamless integration with compatible instruments and systems. Specifications: · Material: Aluminum Alloy · Controller Type: Sine Wave Controller · Color: As Picture Shown · Weight: Approx. 420g / 14.8oz · Controller Box Size: Approx. 125 x 66 x 39mm (4.9 x 2.6 x 1.5in) · Connector Type: Waterproof Connector · Maximum Current: 25±1A · Rated Current: 12A · Speed Setting Voltage: 1-4.2V · Brake Input: Low Level · Applicable Motor: Usually 750W Brushless Motor Controller Wire Color Definition: · Black Long Wire: Motor Wire · Red and Black Single Big Wire: Power Cord · Black Long Wire (Fine Hole): One for Four/One for Five (9 Cores) · Black Line and Red Head: Light Line · Black Wire and Yellow Head: Power Assist Sensor Wire Package Includes: · 1 x Sine Wave Controller This sine wave controller combines robust construction, advanced features, and ease of installation to provide a reliable and efficient solution for electric bicycles. Its waterproof design and stable speed control make it an ideal choice for riders seeking durability and superior performance in all conditions.