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2 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 VS20768(CDE55G3/CDE55G3-1C) €72.13
  • Dahua DHI-LM55-F400 €47.76
Model ViewSonic VS20768(CDE55G3/CDE55G3-1C) Dahua DHI-LM55-F400
Running cost
Running cost (per year) €72.13 €47.76
over 10 years €721 +€244 over 10 years €478
kWh per year 255 169
kg CO₂e per year from electricity use 53 35
Specifications
Brand ViewSonic Dahua
Model VS20768(CDE55G3/CDE55G3-1C) DHI-LM55-F400
Energy class F F
Screen size 55″ (138.8 cm) 55″ (139 cm)
Power in on mode (SDR) 116.3 W 77 W
Energy class (HDR) F –
Power in on mode (HDR) 116.2 W –
Standby 0.4 W 0.5 W
Networked standby 1.7 W –
Off mode 0 W –
Resolution 3840 × 2160 3840 × 2160
Aspect ratio 16:9 16:9
Panel LCD LED LCD
Refresh rate 60 Hz 60 Hz
Power supply Internal Internal
Guaranteed support 3 years 15 years
Software updates 3 years 8 years
Spare parts available 7 years 7 years
On the market since November 1, 2025 November 21, 2025
EPREL registration number 2522118 761160

Rows where the models differ are highlighted.