BTQ 185 6.3 KW 12V 105Kgf Duo thruster Hydrodynamic bronze base with twin propellers (Duo).12V.6.3 KW power.105Kgf thrust.4-blade composite propeller: corrosion resistance and minimum current absorption.Composite relay protection box.Elastic coupling.Aluminium motor support.Microprocessor to prevent overheating.Reversible torque with timer.Timed automatic stop.