Features： 1、ACCURATE WIRING PCB BOARDS: 6 Digit tube is made of good quality PCB boards, possess accurate wiring and clear board paths 2、FAST WIRING AND USE: LED segment display module is plug and play, no need for cumbersome wiring process, easy and fast to use 3、2 PIN CONNECTION: This is a 6 digit 7 segment display module, the display screen show each decimal point, the module is connected to digital I O via 2 pins 4、TM1637 DRIVER CONTROLLER: Connection module is 2 pin to digital I O, adopt TM1637 controller, the voltage is 5V, possess stable display 5、STABLE AND DURABLE: 6 Digit digital tube come with stable structure, performance and long service life Specification： Item Type: 6 Digit Tube Material: PCB board Application: LED digital display Digits: 6 Digit 7 segment decimalism Use Library: TM1637.h Connection Module: 2 Pins connect to digital I O Controller IC: 74HC595 Voltage: 5V Screen Size: Approx. 46 x 14mm / 1.81 x 0.55in Color: Red Package List： 1 x 6 Digit Tube 1 x Pin Header