The waterproof design (Rates as IP 67) allows this Seaking-60A-V3 ESC to work in water without any extra precautions, so the speed controller is applicable for all the RC boats with the length less than 70cm (27.56"). Besides this ESC adopted the Copper Bar Heat Conduction technology(Patented) and water cooling system, which can easily dissipate the heat produced in operation under high load. Furthermore, the special algorithm, designed for RC boats, make the acceleration punchier and the sailing more stable. With all those mentioned features and some more protections can definitely escort your boat all the time.           Features:          Burst current - 360A.     Waterproof.     Come with built-in water cooling system.     Programmable.     Easy to setup                Additional Information:          Motor Type     Brushless     Forward Current (A)     60     Forward Burst Current (A)     360     Reverse Current (A)     Input Voltage (v)     7.4     Max. Input Voltage (v)     11.1     BEC     6V/2A (Linear Mode)     Programmable     Yes     Fan Heatsink     No     Water Cooling     Yes     Dimension (mm)     60.5 x 38.5 x 25.6     Net Weight (kg)     0.093     Cross Weight (kg)     0.155