Features: 1¡¢4 Digit 7 Segment: This is a basic 4 digit 7 segment display module, using TM1637 driver IC, used for LED digital display 2¡¢Green Light: The 4 digit 7 segment digital display module is a total of 4 green LED word tube, display clock clearly 3¡¢Easy to Use: The digital display module is plug and play, no tedious wiring process is required, easy to use 4¡¢Decimal Point Display: Each display shows a decimal point, the module is connected to digital IO via 2 pins 5¡¢High Quality PCB Board: The digital display tube is produced with high quality PCB board, with precise wiring and clear board paths Item Type: LED Segment Display Module Material: PCB board Application: LED digital display Library: TM1637.h Nixie Tube: 0.36in Driver IC: TM1637 Color: Green Size: Approx.45x22mm/1.8x0.9in Voltage: 5V 1 x LED&nbspSegment&nbspDisplay&nbspModule 1 x Pin Header