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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.

  • ViewSonic VS19972(VA270-H) €11.16
  • iiyama XU2763HSU-B1 €6.45
  • Dahua DHI-LM27-B201M €6.82
Model ViewSonic VS19972(VA270-H) iiyama XU2763HSU-B1 Dahua DHI-LM27-B201M
Running cost
Running cost (per year) €11.16 €6.45 €6.82
over 10 years €112 +€47 over 10 years €65 €68 +€4 over 10 years
kWh per year 39.4 22.8 24.1
kg CO₂e per year from electricity use 8.3 4.8 5.1
Specifications
Brand ViewSonic iiyama Dahua
Model VS19972(VA270-H) XU2763HSU-B1 DHI-LM27-B201M
Energy class E B B
Screen size 27″ (69 cm) 27″ (68.6 cm) 27″ (68.5 cm)
Power in on mode (SDR) 18 W 10.4 W 11 W
Standby 0.5 W 0.3 W 0.5 W
Networked standby 1.9 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 External
Guaranteed support 3 years 7 years 15 years
Software updates 9 years 8 years 8 years
Spare parts available 8 years 7 years 7 years
On the market since February 3, 2024 December 1, 2023 January 1, 2024
EPREL registration number 1931356 1828497 1904606

Rows where the models differ are highlighted.