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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.

  • Acer CB342CUR J0 €12.84
  • Hgfrtee B340QQU16 €4.96
  • EIZO FlexScan EV3451X €9.86
Model Acer CB342CUR J0 Hgfrtee B340QQU16 EIZO FlexScan EV3451X
Running cost
Running cost (per year) €12.84 €4.96 €9.86
over 10 years €128 +€79 over 10 years €50 €99 +€49 over 10 years
kWh per year 45.3 17.5 34.8
kg CO₂e per year from electricity use 9.5 3.7 7.3
Specifications
Brand Acer Hgfrtee EIZO
Model CB342CUR J0 B340QQU16 FlexScan EV3451X
Energy class D C C
Screen size 34″ (87 cm) 34″ (85 cm) 34″ (86.7 cm)
Power in on mode (SDR) 20.7 W 8 W 15.9 W
Energy class (HDR) G – –
Power in on mode (HDR) 46 W – –
Standby 0.5 W 0.1 W 0.3 W
Off mode 0.3 W 0 W 0.2 W
Resolution 3440 × 1440 3440 × 1440 3440 × 1440
Aspect ratio 21:9 16:9 21:9
Panel LED LCD LCD LCD
Refresh rate 60 Hz 165 Hz 60 Hz
Power supply Internal External Internal
Guaranteed support 7 years 1 year 7 years
Software updates 8 years 1 year 7 years
Spare parts available 7 years 1 year 7 years
On the market since April 30, 2025 March 18, 2026 August 11, 2026
EPREL registration number 2405375 2665077 2663315

Rows where the models differ are highlighted.