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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.

  • iiyama GCB3482WQSU-B1 €16.31
  • AOC CU34E4CW €12.40
  • Hgfrtee B340QQU16 €4.96
Model iiyama GCB3482WQSU-B1 AOC CU34E4CW Hgfrtee B340QQU16
Running cost
Running cost (per year) €16.31 €12.40 €4.96
over 10 years €163 +€113 over 10 years €124 +€74 over 10 years €50
kWh per year 57.6 43.8 17.5
kg CO₂e per year from electricity use 12 9.2 3.7
Specifications
Brand iiyama AOC Hgfrtee
Model GCB3482WQSU-B1 CU34E4CW B340QQU16
Energy class E D C
Screen size 34″ (86.4 cm) 34″ (86.4 cm) 34″ (85 cm)
Power in on mode (SDR) 26.3 W 20 W 8 W
Energy class (HDR) G G –
Power in on mode (HDR) 50.2 W 46 W –
Standby 0.3 W 0.5 W 0.1 W
Off mode 0.3 W 0.3 W 0 W
Resolution 3440 × 1440 3440 × 1440 3440 × 1440
Aspect ratio 21:9 21:9 16:9
Panel LED LCD LED LCD LCD
Refresh rate 60 Hz 60 Hz 165 Hz
Power supply Internal Internal External
Guaranteed support 7 years 8 years 1 year
Software updates 8 years 8 years 1 year
Spare parts available 7 years 7 years 1 year
On the market since February 1, 2025 October 15, 2025 March 18, 2026
EPREL registration number 2234233 2418682 2665077
Networked standby – 2 W –

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