Format: DDDD HH:MM:SS Digits height: 1.8" Overall size: 520x110x45mm (20.5" x 4.3" x 1.7") Function 1: DDDD(Countdown) HH:MM:SS(Countdown) Function 2: DDDD(Count up) HH:MM:SS(Count up) Function 3: DDDD(Countdown) HH:MM:SS(Normal Clock(12/24hours)) Brightness: Adjust by Remote control and Auto brightness. Viewing angle(degrees) H:85 V:85 LED Lifetime rating: 100,000 hours Power source: AC110-250V 50-60Hz, DC 5V, USB connector. Clock accuracy: 1-2Mins / Year. Input: IR Remote Control only. Max. Viewing distance: 100 ft. Outline border: Aluminum enclosure. Operation Temperature: 32° to 158 °F, (0° to 70 °C) Humidity Range: 0% to 95% non-condensing. Power cord length: 2000mm. Mounting: Hardware to accommodate ceiling or wall mounting.
