ApisQueen U20 Underwater Thruster 50V 20Kg Thrust 1200W For Kayak, unmanned boat, etc.

    Highly qualified full metal construction, precision machining,Made by material aerometal and digital machinery.Full waterproof technology，Fully encapsulated waterproof, dust-free, grit prevented, anti-corrosive, long last working underwaterHigh precision baring prolongs the motor lifeBest matched power system，Highly strengthened metal propeller, best matched motor, provides most efficiencyEasy assemble，Modularized base, meeting with different field requirement. U20 use environment: seawater/freshwater DESCRIPTION OF THE UNDERWATER THRUSTERS CW AND CCW ABOUT PWM  PWM full name is (Pulse-width modulation). It is also called duty cycle signal, which indicates the proportion of the high level duration to the whole signal period. 2ms for the whole period of PWM, 1.5ms stop, 1.5-2ms forward, 1.5-1ms reverse. From the diagram, we can clearly see that when PWM is 75% (1.5ms), the motor stops rotating, when PWM is 50% (1ms), the motor rotates in reverse, and when PWM is 100% (2ms) the mot