The world’s first marine ESC to have implemented the turbo timing function which will give the user the edge over the competition with instant turbo boost. The light-weight of the Pro 120A is designed to meet the users’ requirements of a light weight product for all marine competition which weight is a factor of speed and endurance. The core program for top-level competition products guarantees the user first-class control and “abundant” programmable parameter items for different competition environments. (* The ESC is especially applicable to ECO/MONO1) The built-in switch mode BEC with a maximum output of 8A and adjustable voltage of 6V/7.4V make the ESC compatible with various high voltage servos. Reliable hardware (i.e. MOSFETs with extremely low internal resistance) combined with advanced software (features low-voltage cutoff protection, thermal protection, throttle signal loss protection, and etc) guarantees the durability and reliability of the ESC and relevant electronic devices. The Hobbywing patented heat-conductive copper bar cover on the power board of the ESC combined with the water cooling module efficiently and effectively transfers heat to the outside thus keeping your ESC as cool as possible. Hobbywing Seaking Pro 120A ESC Features: Competition Design Splash-proof High Voltage Built-in BEC Innovative Turbo Function High Durability & Reliability Capacitor Thermal Protection Programming/Upgrading Wirelessly Efficient Cooling System Regular Firmware Updates Free of Charge Spec Check: Brushed/Brushless: Brushless Waterproof: Waterproof (IP55) Cont./Peak Current: 120A/760A Input Voltage: 2-6S Lipo/6-18 Cell NiMH BEC Output: Switch Mode: 6V/7.4V,4A Input Wires: Red-12AWG-200mm*1/Black-12AWG-200mm*1 Output Wires: Black-12AWG-150mm*3 Input Connectors: No Output Connectors: 4.0mm Gold Connectors (Female) LCD Program Box: Supported WiFi Module: Supported Size: 96.6x37.9x10.3mm I.D./O.D. of the Water Cooling Pipe: ?2.0/5.5 mm Weight: 87.5g (HW30302361)