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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.

  • Dahua DHI-LM25-E241BN €11.47
  • Gigabyte GS25F14 €7.44
  • ASUS XG259CS €9.12
Model Dahua DHI-LM25-E241BN Gigabyte GS25F14 ASUS XG259CS
Running cost
Running cost (per year) €11.47 €7.44 €9.12
over 10 years €115 +€40 over 10 years €74 €91 +€17 over 10 years
kWh per year 40.5 26.3 32.2
kg CO₂e per year from electricity use 8.5 5.5 6.8
Specifications
Brand Dahua Gigabyte ASUS
Model DHI-LM25-E241BN GS25F14 XG259CS
Energy class E C D
Screen size 25″ (62.3 cm) 25″ (62.2 cm) 25″ (62.2 cm)
Power in on mode (SDR) 18.5 W 12 W 14.7 W
Energy class (HDR) G F G
Power in on mode (HDR) 25 W 23 W 30 W
Standby 0.3 W 0.5 W 0.5 W
Off mode 0.2 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 Internal Internal External
Guaranteed support 15 years 7 years 7 years
Software updates 8 years 8 years 8 years
Spare parts available 7 years 7 years 7 years
On the market since August 19, 2026 December 19, 2025 June 28, 2024
EPREL registration number 2823724 2473514 2015624

Rows where the models differ are highlighted.