The TD30E underwater thruster is a powerful all-metal underwater motor that is completely waterproof, dust, grit and corrosion resistant. It has built-in ESC and BEC, is easy to set up and operate, and is designed for electric boats, fishing boats, rescue equipment and ROVs. Product Specifications Power: 1900W KV:85 Max Thrust: 30kg forward, 20kg reverse Depth Rating: Up to 100m Cable Length: 100cm (customizable) ESC parameter: Voltage Range: 12V-50V Current: 80A Max Current: 100A PWM input pulse width:1000-1500-2000us (1500 is stop) PWM frequency: 50-500 Hz Throttle calibration mode: automatic Temperature protection: YES Locked rotor protection: YES