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4 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.
  • Cepter

    C21PULSE3
    E 21″Full HDLCD / LED

    €9.30 per year

    +€2.17 a year

  • Cheapest to run

    Dell

    E2225HS
    D 21″Full HDLCD / LED

    €7.13 per year

  • iiyama

    XUB2293HS-B3
    D 21″Full HDLCD / LED

    €7.19 per year

    +€0.06 a year

  • Dell

    SE2225H
    D 21″Full HDLCD / LED

    €7.19 per year

    +€0.06 a year

Yearly running cost

Bars in proportion to the energy each model uses.

  • Cepter C21PULSE3 €9.30
  • Dell E2225HS €7.13
  • iiyama XUB2293HS-B3 €7.19
  • Dell SE2225H €7.19
Model Cepter C21PULSE3 Dell E2225HS iiyama XUB2293HS-B3 Dell SE2225H
Running cost
Running cost (per year) €9.30 €7.13 €7.19 €7.19
over 10 years €93 +€22 over 10 years €71 €72 +€1 over 10 years €72 +€1 over 10 years
kWh per year 32.9 25.2 25.4 25.4
kg CO₂e per year from electricity use 6.9 5.3 5.3 5.3
Specifications
Brand Cepter Dell iiyama Dell
Model C21PULSE3 E2225HS XUB2293HS-B3 SE2225H
Energy class E D D D
Screen size 21″ (54.5 cm) 21″ (54.5 cm) 21″ (54.5 cm) 21″ (54.5 cm)
Power in on mode (SDR) 15 W 11.5 W 11.6 W 11.6 W
Standby 0.5 W 0.3 W 0.4 W 0.3 W
Networked standby 0 W – – –
Off mode 0.3 W 0.3 W 0.3 W 0.3 W
Resolution 1920 × 1080 1920 × 1080 1920 × 1080 1920 × 1080
Aspect ratio 16:9 16:9 16:9 16:9
Panel LCD LED LCD LED LCD LED LCD
Refresh rate 60 Hz 60 Hz 60 Hz 60 Hz
Power supply External Internal Internal Internal
Guaranteed support 15 years 7 years 7 years 7 years
Software updates 8 years 8 years 8 years 8 years
Spare parts available 7 years 7 years 7 years 7 years
On the market since April 6, 2025 August 20, 2024 May 1, 2024 August 20, 2024
EPREL registration number 2303706 1999269 1962515 1999295

Rows where the models differ are highlighted.