ITEM NAME:5pcs 5V DC Drivers 28BYJ-48 TE 118 Stepper Motor + 5 pcs ULN2003 Driver Boa S3Y2 5pcs 5V DC Drivers 28BYJ-48 TE 118 Stepper Motor + 5 pcs ULN2003 Driver Boa S3Y2 ULN2003 conductive board: A, B, C, D four phases LED indicates the status of the motor work step by step. Stepper motor with a standard interface, when used directly pluggable. Transmission module assembly Size: 2.8cm x 2.8cm x 2cm / 1.10 x 1.10 x 0.79 inch Material: Plastic metal Color: green Technical Parameters: Rated voltage: DC5V 4 phases Step angle: 5.625 x 1/64 DC resistance: 200 7% (25C) Insulation resistance: more than 10M (500V) Dielectric rigidity: 600 V AC / 1mA / 1s Degree of isolation: A No load of traction in frequency: more than 600Hz No load Frequency drop: more than 1000Hz Pull in torque: more than 34.3mN.m (120 Hz) Torque stop: more than 34.3mN.m Increase in temperature: less than 40K (120 Hz) Noise: less than 40dB (120Hz, no load, 10cm) Cable length: 23.5cm / 9.25 inch The package includes: 5pcs Stepper Motor Controllers 5pcs ULN2003 Driver Board Module Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/-1-3cm.