Dell P2421 User Manual page 43

Preset Modes To reduce the risk of eye strain and neck/arm/
back/shoulder pain from using the monitor for
long periods of time, we suggest you to:
1. Set the distance of the screen between 20 to
28 in. (50 - 70 cm) from your eyes.
2. Blink frequently to moisten your eyes or wet
your eyes with water after prolonged usage of
the monitor.
3. Take regular and frequent breaks for 20 minutes
every two hours.
4. Look away from your monitor and gaze at a
distant object at 20 feet away for at least 20
seconds during the breaks.
5. Perform stretches to relieve tension in the
neck, arm, back, and shoulders during the
breaks.
• Movie: Loads color settings ideal for movies.
• Game: Loads color settings ideal for most gaming
applications.
• Warm: Presents colors at lower color
temperatures. The screen appears warmer with a
red/yellow tint.
• Cool: Presents colors at higher color
temperatures. The screen appears cooler with a
blue tint.
• Custom Color: Allows you to manually adjust the
color settings.
Use the arrow buttons to adjust the three colors
(R, G, B) values and create your own preset color
mode.
Operating the monitor
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