The ZTW SEAL Series is designed specifically for RC Boat applications, featuring a waterproof design. They are constructed using aluminum, adding an attractive look and ensuring enhanced durability compared to its competition. The 200A ESC includes two water cooling pipes as well as customized heat sinks. The 200A ESC also offers a built in BEC, eliminating the need for an additional battery pack to operate the servo. In order to protect the boat, the ESC offers a power reduction when too hot and an optional Low Voltage Cutoff.