Brushless controller for boat models. Waterproof according to IP67 for use in water without additional precautions. High-efficiency water cooling for excellent temperature regulation even under maximum loads. Firmware specifically tuned for RC boats. External programming port. Operational safety through undervoltage cutoff, overheating protection, and signal loss protection. Dimensions: 68.5 mm x 39.4 mm x 32 mm, weight: 150 g. The Seaking 120A from Hobbywing is a brushless controller for RC boat models, particularly suited for sailboats with a hull length of up to 110 cm. The controller can handle continuous loads of up to 120 A and withstand short peak currents of up to 720 A. It is suitable for operation with LiPo batteries with two to six cells. To power the receiver, the controller is equipped with a BEC that delivers up to 5 A at a voltage of 6 V. Efficient cooling. As expected from a controller for boat models, the Seaking controller features a highly efficient water cooling system, which, along with the copper heat dissipation system, ensures perfect temperature regulation even under maximum loads. Thanks to its IP67-rated housing, which protects against water ingress, no special precautions are necessary during installation.