Super brightness LED countdown clock, LED countdown timer

Specification:
1, Dimension: 1800x350X50mm
2, Display usage: Total 9 digital 8" red 7 segment LED display
3, Case material: Aluminum alloy
4, Faceplate: Display window cover glass
5, Cover board: Aluminum board
6, Remote control: Wireless remote control
7, Key-press: On the left of frame

Function:
1, Total 9 digital 7-segment LED displayshow 3 digital days and 6 digital HH: MM: SS countdown
2, Work process: When its right countdowns to 00: 00: 00, it will subtract 1 from left days

Technical norms:
1, Time Format: 24 hours
2, Power supply: AC110V-240V