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10:00:01
10 hours and 1 second of pure black screen!
11:59:52
Pure RGB Colour Screen Slides - 12 Hours Long | Monitor Display Test
24:00:03
24 hours of pure white screen!
3:00:01
Bright White Screen 3 Hours HD | Bright Night Light | 3 Hours of Pure White | White Screen Test
1:04:27
watch beige for 1 hour of this incredible beige screen! Or brown...light brown? balance monitorcolor
24:01:27
24 hours + of pure black screen in HD!
3:43
Calibrate Your Display Like A Pro
10:00:02
Black Screen 10 hours - Pure Black Screen No sound HD Quality
