Excellent waterproof design (rates as IP 67) allows this ESC to work in water without any extra precautions; High quality components have very strong over-current withstanding capabilities; Patented Copper Heat Conduction technology and high-efficiency water cooling system can easily dissipate the heat produced in operation under high load; The special firmware designed for RC boats can make the acceleration punchier and the sailing more stable; The external Programming Port can connect to the LED Program Box for easily setting the parameters of the ESC Multiple protections like low-voltage cutoff protection, thermal protection and throttle signal loss protection, make the ESC more reliable Model / SKU SeaKing-180A-V3/ 30302181011 Cont./Peak Current 180A/1080A Boat Applicable Boat length < 130cm Input / 2-6S Lipo BEC Type / BEC Output Switch Mode /6V/5A External Programming Port Available Water Cooling Pipe (Inside / Outside): 'Äì¬ß3.0 / 5.4mm Input wire Red-10AWG-200mm*1 Black-10AWG-200mm*1 Output wire Black-10AWG-150mm*3 Size / Weight 72X48X36.6mm (Include the Water Cooling Pipe) 207g