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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.

  • Sony FW-50BZ30L €44.03
  • Dahua DHI-LM50-F400N €40.56
Model Sony FW-50BZ30L Dahua DHI-LM50-F400N
Running cost
Running cost (per year) €44.03 €40.56
over 10 years €440 +€35 over 10 years €406
kWh per year 155 143
kg CO₂e per year from electricity use 33 30
Specifications
Brand Sony Dahua
Model FW-50BZ30L DHI-LM50-F400N
Energy class F F
Screen size 50″ (125.7 cm) 50″ (125.7 cm)
Power in on mode (SDR) 71 W 65.4 W
Energy class (HDR) G –
Power in on mode (HDR) 93 W –
Standby 0.5 W 0.5 W
Networked standby 2 W –
Resolution 3840 × 2160 3840 × 2160
Aspect ratio 16:9 16:9
Panel LED LCD LED LCD
Refresh rate 50 Hz 60 Hz
Power supply Internal Internal
Guaranteed support 7 years 15 years
Software updates 8 years 8 years
Spare parts available 7 years 7 years
On the market since June 23, 2023 July 18, 2025
EPREL registration number 1392991 2419520

Rows where the models differ are highlighted.