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Dell E2221HN/E2421HN
User’s Guide
Monitor model: E2221HN/E2421HN Regulatory model: E2221HNf, E2421HNf
Notes, Cautions and Warnings
NOTE: A NOTE indicates important information that helps you make better use of your computer.
CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
Copyright © 2020 Dell Inc. or its subsidiaries. All rights reserved.
Dell, EMC, and other trademarks are of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.
2020 - 09
Rev. A00
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About your monitor............................................ |
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Package contents...................................................... |
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Product features....................................................... |
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Identifying features and controls................................ |
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Monitor specifications............................................... |
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Plug and play capability.............................................. |
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LCD monitor quality and pixel policy............................ |
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Maintenance guidelines.............................................. |
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Setting up the monitor...................................... |
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Connecting the stand ................................................ |
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Connecting your monitor............................................ |
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Organizing cables...................................................... |
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Removing the stand................................................... |
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Operating your monitor..................................... |
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Turning on the monitor.............................................. |
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Using the front panel controls.................................... |
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Using the On-Screen Display (OSD) menu.................. |
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Setting up your monitor............................................ |
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Using tilt................................................................. |
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Contents │ 3
Troubleshooting................................................ |
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Self-test.................................................................. |
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Built-in diagnostics................................................... |
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Common problems..................................................... |
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Product-specific problems........................................ |
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Appendix.......................................................... |
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FCC Notices (U.S. Only) and Other Regulatory |
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Information.............................................................. |
44 |
Contact Dell............................................................. |
44 |
Pin assignments ...................................................... |
45 |
4 │ Contents
About your monitor
Package contents
Your monitor ships with the components indicated in the table. Ensure that you have received all the components and see Contact Dell if anything is missing.
NOTE: Some items may be optional and may not ship with your monitor. Some features may not be available in certain countries.
NOTE: To set up Stand from any other source, refer to the documentation comes with the Stand for instruction.
Component image |
Component description |
Display
Stand riser
Stand base
VESA™ Screw Cover
Power cable (varies by country)
About your monitor │ 5
Component image |
Component description |
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VGA cable |
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(EMEA and Japan region) |
HDMI cable
• Quick Setup Guide
• Safety, Environmental, and
Regulatory Information
Product features
The Dell E2221HN/E2421HN flat panel monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD) Panel with LED backlight. The monitor features include :
•E2221HN: 54.68 cm (21.5 in.) diagonal viewable area display (measured diagonally). 1920 x 1080 resolution, with full-screen support for lower resolutions.
•E2421HN: 60.47 cm (23.8 in.) diagonal viewable area display (measured diagonally). 1920 x 1080 resolution, with full-screen support for lower resolutions.
•E2221HN: Viewing angles of 170 degrees in vertical and 160 degrees in horizontal directions.
•E2421HN: Wide viewing angles of 178 degrees in vertical and horizontal directions.
•Dynamic contrast ratio (1,000:1).
•Digital connectivity with HDMI.
•Plug and play capable if supported by your computer.
•On-Screen Display (OSD) adjustments for easy setup and screen optimization.
•0.3 W standby power when in the sleep mode.
•Optimize eye comfort with a flicker-free screen.
•Possible long-term effects if blue light emission from the monitor may cause damage to the eyes, including eye fatigue or digital eye strain. ComfortView feature to reduce risk of eye strain from high blue light emission.
•Security-lock slot.
•Arsenic-free glass and Mercury-free for panel only.
•BFR/PVC-Reduced (Its circuit boards are made from BFR/PVC-free laminates).
•Meets NFPA 99 leakage current requirement.
•TCO-certified display.
•EPEAT registered where applicable. EPEAT registration varies by country. See www.epeat.net for registration status by country.
•RoHS Compliant.
•Energy Star® Certified.
6 │ About your monitor
Identifying features and controls
Front view
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Description |
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To access the OSD menu and change the |
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Function buttons |
settings if required. (For more information, |
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see Using the front panel controls) |
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Power On/Off button |
To turn the monitor On or Off. |
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Back view |
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With monitor stand |
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Use |
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Security-lock slot |
To secure the monitor using a security lock |
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(purchased separately). |
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See this label if you need to contact Dell |
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Barcode, serial number, |
for technical support. The Service Tag is a |
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enables Dell service technicians to identify |
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and service tag label |
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the hardware components in your computer |
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and access warranty information. |
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Regulatory information |
List the regulatory approvals. |
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Cable-management slot |
To organize the cables. |
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Stand release button |
Release stand from monitor. |
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About your monitor │ 7
Side view
Bottom view, without monitor stand |
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Description |
Use |
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Power port |
To connect the monitor power cable. |
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HDMI port |
For connection to your computer using |
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HDMI cable. |
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VGA port |
For connection to your computer using |
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VGA cable. |
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8 │ About your monitor
Monitor specifications
Model |
E2221HN |
E2421HN |
Screen type |
Active matrix-TFT LCD |
Active matrix-TFT LCD |
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Panel type |
TN |
In-Plane Switching |
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Viewable area |
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Diagonal |
546.86 mm (21.5 in.) |
604.70 mm (23.8 in.) |
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Active area |
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Horizontal |
476.64 mm (18.77 in.) |
527.04 mm (20.75 in.) |
Vertical |
268.11 mm (10.56 in.) |
296.46 mm (11.67 in.) |
Area |
1277.92 cm² (198.21 in.²) |
1562.46 cm² (242.15in.²) |
Pixel pitch |
0.2482 mm x 0.2482 mm |
0.2745 mm x 0.2745 mm |
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Pixel per inch (PPI) |
102 |
92 |
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Viewing angle |
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Horizontal |
170° (typical) |
178° (typical) |
Vertical |
160° (typical) |
178° (typical) |
Brightness |
250 cd/m² (typical) |
250 cd/m² (typical) |
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Contrast ratio |
1,000 to 1 (typical) |
1,000 to 1 (typical) |
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Faceplate coating |
Anti-glare with 3H hardness |
Anti-glare with 3H hardness |
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Backlight |
LED light bar system |
LED light bar system |
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Response time |
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Normal mode |
5 ms |
8 ms |
Fast mode |
- |
5 ms |
Color depth |
16.7 million colors |
16.7 million colors |
Color gamut |
72% (CIE1931)/83% (CIE1976) |
72% (CIE1931)/83% (CIE1976) |
Dell display manager |
Yes |
Yes |
compatibility |
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Connectivity |
1 x HDMI 1.4, 1 x VGA |
1 x HDMI 1.4, 1 x VGA |
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Bezel width (edge of |
17.8 mm (Top) |
11.8 mm (Top) |
monitor to active area) |
17.8 mm (Left/Right) |
11.8 mm (Left/Right) |
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17.8 mm (Bottom) |
18.2 mm (Bottom) |
Security |
Security-lock slot for cable |
Security-lock slot for cable |
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lock (optional purchase) |
lock (optional purchase) |
Tilt angle |
-5° to 21° |
-5° to 21° |
About your monitor │ 9
Resolution specifications
Model |
E2221HN |
E2421HN |
Horizontal scan range |
30 kHz to 83 kHz (automatic) |
30 kHz to 83 kHz (automatic) |
Vertical scan range |
56 Hz to 76 Hz (automatic) |
56 Hz to 76 Hz (automatic) |
Maximum preset resolution |
1920 x 1080 @ 60 Hz |
1920 x 1080 @ 60 Hz |
Preset display modes
Display Mode |
Horizontal |
Vertical |
Pixel Clock |
Sync Polarity |
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Frequency |
Frequency |
(MHz) |
(Horizontal /Vertical) |
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(kHz) |
(Hz) |
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VESA, 720 x 400 |
31.5 |
70.1 |
28.3 |
-/+ |
VESA, 640 x 480 |
31.5 |
60.0 |
25.2 |
-/- |
VESA, 640 x 480 |
37.5 |
75.0 |
31.5 |
-/- |
VESA, 800 x 600 |
37.9 |
60.3 |
40.0 |
+/+ |
VESA, 800 x 600 |
46.9 |
75.0 |
49.5 |
+/+ |
VESA, 1024 x 768 |
48.4 |
60.0 |
65.0 |
-/- |
VESA, 1024 x 768 |
60.0 |
75.0 |
78.8 |
+/+ |
VESA, 1152 x 864 |
67.5 |
75.0 |
108.0 |
+/+ |
VESA, 1280 x1024 |
64.0 |
60.0 |
108.0 |
+/+ |
VESA, 1280 x1024 |
80.0 |
75.0 |
135.0 |
+/+ |
VESA, 1600 x 900 |
60.0 |
60.0 |
108.0 |
+/+ |
VESA, 1920 x1080 |
67.5 |
60.0 |
148.5 |
+/+ |
Electrical specifications
Model |
E2221HN |
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Video input signals |
• Analog RGB: 0.7 V ± 5 %, 75 Ω input impedance |
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• HDMI 1.4 (HDCP 1.2), 600 mV for each differential line, |
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100 Ω input impedance per differential pair |
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Synchronization |
Separate horizontal and vertical synchronizations, |
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input signals |
polarity-free TTL level, SOG (Composite SYNC on green) |
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AC input voltage/ |
100 VAC to 240 VAC / 50 Hz or 60 Hz ± 3 Hz / 0.7 A |
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frequency/current |
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Inrush current |
30 A (120 V AC Input) |
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60 A (240 V AC Input) |
Model |
E2421HN |
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Video input signals |
• Analog RGB: 0.7 V ± 5 %, 75 Ω input impedance |
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• HDMI 1.4 (HDCP 1.2), 600 mV for each differential line, |
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100 Ω input impedance per differential pair |
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Synchronization |
Separate horizontal and vertical synchronizations, |
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input signals |
polarity-free TTL level, SOG (Composite SYNC on green) |
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AC input voltage/ |
100 VAC to 240 VAC / 50 Hz or 60 Hz ± 3 Hz / 0.8 A |
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frequency/current |
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Inrush current |
30 A (120 V AC Input) |
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60 A (240 V AC Input) |
10 │ About your monitor
Physical characteristics
Model |
E2221HN/E2421HN |
Signal cable type |
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Analog |
D-Sub (VGA), 15 pins (cable is included for EMEA and JPN region only); |
Digital |
HDMI, 19 pins |
NOTE: Dell monitors are designed to work optimally with the video cables that are shipped with your monitor. As Dell does not have control over the different cable suppliers in the market, the type of material, connector and process used to manufacture these cables, Dell does not guarantee video performance on cables that are not shipped with your Dell monitor.
Dimensions |
E2221HN |
E2421HN |
(with stand) |
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Height |
397.30 mm (15.64 in.) |
419.70 mm (16.52 in.) |
Width |
512.20 mm (20.17 in.) |
550.60 mm (21.68 in.) |
Depth |
171.00 mm (6.73 in.) |
171.00 mm (6.73 in.) |
Dimensions |
E2221HN |
E2421HN |
(without stand) |
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Height |
303.70 mm (11.96 in.) |
326.50 mm (12.85 in.) |
Width |
512.20 mm (20.17 in.) |
550.60 mm (21.68 in.) |
Depth |
52.40 mm (2.06 in.) |
52.40 mm (2.06 in.) |
Stand dimensions |
E2221HN |
E2421HN |
Height |
176.90 mm (6.96 in.) |
176.90 mm (6.96 in.) |
Width |
200.00 mm (7.87 in.) |
200.00 mm (7.87 in.) |
Depth |
171.00 mm (6.73 in.) |
171.00 mm (6.73 in.) |
Weight |
E2221HN |
E2421HN |
Weight with |
4.90 kg (10.80 lb) |
5.95 kg (13.12 lb) |
packaging |
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With stand |
3.51 kg (7.74 lb) |
4.27 kg (9.41 lb) |
assembly and cables |
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Without stand |
2.70 kg (5.95 lb) |
3.25 kg (7.17 lb) |
assembly and cables |
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Weight of stand |
0.44 kg (0.97 lb) |
0.59 kg (1.30 lb) |
assembly |
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About your monitor │ 11
Environmental characteristics
Model |
E2221HN/E2421HN |
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Temperature: |
0°C to 40°C (32°F to 104°F) |
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Operating |
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Non-operating: |
-20°C to 60°C (-4°F to 140°F) |
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Storage Shipping |
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Humidity: |
10% to 80% (non-condensing) |
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Operating |
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Non-operating: |
5% to 90% (non-condensing) |
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Storage Shipping |
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Altitude: |
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Operating (maximum) |
5,000 m (16,400 ft) |
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Non-operating (maximum) |
12,192 m (40,000 ft) |
Model |
E2221HN |
E2421HN |
Thermal dissipation |
54.59 BTU/hour (maximum) |
68.24 BTU/hour (maximum) |
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44.36 BTU/hour (typical) |
51.18 BTU/hour (typical) |
12 │ About your monitor
Power Management Modes
If you have VESA’s DPM™ compliance display card or software installed in your PC, the monitor can automatically reduce its power consumption when not in use. This is referred to as Standby Mode. If the computer detects input from the keyboard, mouse, or other input devices, the monitor automatically resumes functioning. The following table shows the power consumption and signaling of this automatic power saving feature.
E2221HN
VESA Modes |
Horizontal |
Vertical |
Video |
Power |
Power |
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sync |
sync |
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indicator |
consumption |
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Normal operation |
Active |
Active |
Active |
White |
16 W (maximum)** |
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13 W (typical) |
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Active-off mode |
Inactive |
Inactive |
Blanked |
White |
Less than 0.3 W |
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(Glowing) |
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Switch-off |
- |
- |
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Off |
Less than 0.3 W |
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Power Consumption PON |
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11.21 W |
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Total Energy Consumption(TEC) |
35.16 kWh |
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E2421HN
VESA Modes |
Horizontal |
Vertical |
Video |
Power |
Power |
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sync |
sync |
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indicator |
consumption |
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Normal operation |
Active |
Active |
Active |
White |
20 W (maximum)** |
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15 W (typical) |
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Active-off mode |
Inactive |
Inactive |
Blanked |
White |
Less than 0.3 W |
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(Glowing) |
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Switch-off |
- |
- |
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Off |
Less than 0.3 W |
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Power Consumption PON |
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12.34 W |
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Total Energy Consumption(TEC) |
38.52 kWh |
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**Maximum power consumption with max luminance and contrast.
About your monitor │ 13
This document is informational only and reflects laboratory performance. Your product may perform differently, depending on the software, components and peripherals you ordered and shall have no obligation to update such information. Accordingly, the customer should not rely upon this information in making decisions about electrical tolerances or otherwise. No warranty as to accuracy or completeness is expressed or implied.
NOTE: This monitor is ENERGY STAR certified.
This product qualifies for ENERGY STAR in the factory default settings which can be restored by "Factory Reset" function in the OSD menu. Changing the factory default settings or enabling other features may increase power consumption that could exceed the ENERGY STAR specified limit.
NOTE:
PON : Power consumption of On Mode as defined in Energy Star 8.0 version.
TEC: Total energy consumption in kWh as defined in Energy Star 8.0 version.
The OSD functions only in the normal operation mode. When any button is pressed in the Active-off mode, one of the following messages will be displayed:
Dell 2X Monitor
? No HDMI Cable
The display will go into Standby mode in 4 minutes.
www.dell.com/E2X21HN
E2X21HN
14 │ About your monitor
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