4-Digit LED 0.36" 7 Segments Display Tube Decimal TM1637 Module Size 30x14mm 0.36 inch for Arduino Red/Blue/Green/White/Yellow (Blue): Amazon.com: Industrial & Scientific
5 Colors TM1637 7 Segment 4 Digit 0.56" LED Display Module Clock Digital Tube Serial Driver Board for Arduino DIY Kit|board for arduino|board boardboard digital - AliExpress
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0.36" 4 Digit 7-Segment LED Display DIP Common Cathode - Blue | eBay
0.56 inch Red 4 Digit 7 Segment LED Display CC 12pin
How to Control a 4-digit 7-segment LED Display with an Arduino Microcontroller
LED Red 4X0.56' 4digit 7-Segment Display Common Anode Bd05641BS 12pin - China LCD Display, LED Display | Made-in-China.com