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3 monitors side by side.

6 h a day
  • Electricity at €0.2832 per kWh (household price with taxes, Eurostat 2026-S1).
  • 210 g CO₂e per kWh generated in 2023 (European Environment Agency). Counts use only, not manufacturing.

Yearly running cost

Bars in proportion to the energy each model uses.

  • LG 22U401A €8.25
  • iiyama XUB2293HS-B3 €7.19
  • Dell SE2225H €7.19
Model LG 22U401A iiyama XUB2293HS-B3 Dell SE2225H
Running cost
Running cost (per year) €8.25 €7.19 €7.19
over 10 years €82 +€11 over 10 years €72 €72
kWh per year 29.1 25.4 25.4
kg CO₂e per year from electricity use 6.1 5.3 5.3
Specifications
Brand LG iiyama Dell
Model 22U401A XUB2293HS-B3 SE2225H
Energy class E D D
Screen size 21″ (54.4 cm) 21″ (54.5 cm) 21″ (54.5 cm)
Power in on mode (SDR) 13.3 W 11.6 W 11.6 W
Energy class (HDR) E – –
Power in on mode (HDR) 16.2 W – –
Standby 0.5 W 0.4 W 0.3 W
Off mode 0.3 W 0.3 W 0.3 W
Resolution 1920 × 1080 1920 × 1080 1920 × 1080
Aspect ratio 16:9 16:9 16:9
Panel LED LCD LED LCD LED LCD
Refresh rate 60 Hz 60 Hz 60 Hz
Power supply External Internal Internal
Guaranteed support 8 years 7 years 7 years
Software updates 8 years 8 years 8 years
Spare parts available 8 years 7 years 7 years
On the market since April 29, 2025 May 1, 2024 August 20, 2024
EPREL registration number 2343658 1962515 1999295

Rows where the models differ are highlighted.