This LED 7 Segment Display is a 4-digit cube display for presenting 4 numbers from 0 to 9, making it a wonderful 4-digit countdown LED display. The 4-Digit LED Display comes equipped with integrated serial input/output common cathode drivers and displays numerical values like the time, temperature, or other information. Each of the numbers can be set to act individually or together as large displays, and if you integrate additional LED Tube Displays, they can all act together in a chain or cascade.