BTQ 140 1.3 KW 12V 20Kgf Mono thruster - custom BJT - Hydrodynamic bronze base - Composite 4-blade propeller: corrosion resistance and minimum current absorption - Composite relay protection box - 12V - 1.3 KW power - 20Kgf thrust - Elastic coupling - Aluminium motor support - Microprocessor to prevent overheating - Reversible torque with timer. - Timed automatic stop.