ULN2003 Driver Board: A, B, C, D four-phase LED indicates the status of the stepper motor work. 2pcs Drive Module Board ULN2003. This is a stepper motor and a stepper motor driver. Stepper motor Size: 3.2 x 3.2 cm.
Bearing Type: Dual Ball Bearing, Speed: 3000 RPM, Air Flow: 9.40CFM. DC Line Length :240mm. UL CE approved certification. Waranty: 1 year and support. Life Expectance: 50000 hours at 25 degree, Noise: 28.35dB(A).
