RC Boat 2440 KV4500 Brushless Motor 2S-3S 40A 5V/3A ESC and Water Cooling Jacket Kit for RC Boat Jet Drive Speed Boat Marine

- High-Performance Brushless Motor: Specifically designed for RC Boat, RC Marine, and RC Jet Boat applications, featuring four magnetic poles for lower heat, stronger torque, better low-speed linear performance, and over 80% power efficiency compared to 2-pole motors.- Water Cooling Jacket Included: Equipped with a water cooling jacket, providing effective temperature reduction in enclosed spaces for optimal motor performance and longevity.- 40A ESC with Advanced Features: The Brushless Motor Electronic Speed Controller (ESC) is fully waterproof and dustproof, suitable for RC Boat, RC Yacht, RC Marine, and various boat models like FT009 / FT011 / FT012. It features a water cooling system and MOSFET with extremely low internal resistance, enhancing over-current withstanding capability and reliability. Two running modes ('forward only' and 'forward and backward') cater to different applications.- Multiple Protection Features: Incorporates various protection features including low voltage cut-off protection, over-heat protection, and throttle signal loss protection, ensuring safe and reliable operation. The high-efficiency water cooling system further enhances performance.- Built-in High Power Output BEC: Includes a built-in high-power output Battery Eliminator Circuit (BEC), providing stable power supply to the receiver and servo systems for consistent performance.