1. Optimized Performance: Designed for high-performance drones, the KV420 is engineered to accommodate a wide range of flight conditions and requirements. It supports a 4-8S lithium battery range, ensuring compatibility with most drone setups 2. High Power and Efficiency: Capable of reaching a maximum power of 840W and handling a maximum current of 35A, this motor is designed to deliver superior power and efficiency, making it an ideal choice for both amateurs and professional drone operators 3. Wide Compatibility: The MN5212 motor is compatible with a range of drone models and can be used on different types of aircraft. It's an ideal upgrade for both hobbyists and professionals looking for improved performance and efficiency 4. Construction: Made from premium materials, this motor ensures and strong performance in a wide range of flight conditions. Its superior construction minimizes vibrations, enhancing the stability of your aircraft Resistance: 69m Shaft diameter: 4mm Silicon steel sheet outer diameter: 52mm Support lithium battery: 4-8S Maximum power: 840W Slot pole: 24N22P Wire length: 600mm No-load current: 1.1A Maximum current: 35A Colour:As Shown Material:Metal Package Contents: 1 * Motor Kit 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.