Item Type: LED Digital Display Tube_x000D_Material: PCB board_x000D_Purpose: LED digital display_x000D_Digit Number: 8 bit 7 segment decimal_x000D_Controller: 74HC595_x000D_Connection Module: 3 pins digital IO_x000D_Voltage: 5V_x000D_Color: Green 1HIGH PERFORMANCE 74HC595 Driver Module: This digital display tube adopts 74HC595 driver module, connect to digital IO via 3 pins, has stable performance 28 BIT 7 SEGMENT DECIMAL: This digital display tube has 8 bit and 7 segment, each digit has a decimal point, all points can be controlled individually 3GREEN LIGHT DISPLAY: The LED digital display module contains 8 green LED word tube, display the number clearly 4EASY USAGE: The LED display digital tube is plug and play, no tedious wiring process is required, easy to connect and use 5PRECISE WIRING: The digital display tube is produced with high quality PCB board, with precise wiring and clear plate1 x_x000D__x000D_LEDDigitalDisplayTube 2 x Pin Header