Description: Light weight, high torque, 78RPM DC12V mini metal gear motor, good for DIY engine, electric lock, vehicle and robot model, etc With excellent stall characteristics, can climb hills easily You can also easily mount a wheel on the motor's output shaft Solidly construction and ready to install in numerous applications Specification: Material: Metal Size: Approx. 4 x 1.1 x 1.8 CM/1.6 x 0.4 x 0.7 inch Wire Length: Approx. 15CM/ 6 Inches Model: N20 Working Voltage range: DC1.5V-DC12V Encoder Wiring Method: Red motor power + (exchange can control the motor positive inversion) Black coded power + (positive and negative pole cannot be wrongly connected, 3.3-5V) Yellow signal feedback (motor rotates a round 7 signals) Green signal feedback (motor rotates a round 7 signals) Blue Encoder Power Supply - (positive and negative pole cannot be wrongly connected, 3.3-5V) WhiteMotor power supply-(Transposition can control the motor positive inversion) Package Includes: 1 Piece Speed Reduction Motor 1 Piece Wiring Terminal