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4 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.
  • LC-Power

    LC-M34-UWQHD-144-C
    G 34″QHDLCD / LED144 Hz

    €24.19 per year

    +€5.46 a year

  • Cheapest to run

    Itek

    ITMC34V181WQHD
    F 34″QHDLCD / LED165 Hz

    €18.73 per year

  • MSI

    MAG 346CQ
    F 34″QHDLCD / LED180 Hz

    €19.23 per year

    +€0.50 a year

  • Acer

    EI342CKR
    G 34″QHDLCD / LED144 Hz

    €19.78 per year

    +€1.05 a year

Yearly running cost

Bars in proportion to the energy each model uses.

  • LC-Power LC-M34-UWQHD-144-C €24.19
  • Itek ITMC34V181WQHD €18.73
  • MSI MAG 346CQ €19.23
  • Acer EI342CKR €19.78
Model LC-Power LC-M34-UWQHD-144-C Itek ITMC34V181WQHD MSI MAG 346CQ Acer EI342CKR
Running cost
Running cost (per year) €24.19 €18.73 €19.23 €19.78
over 10 years €242 +€55 over 10 years €187 €192 +€5 over 10 years €198 +€11 over 10 years
kWh per year 85.4 66.1 67.9 69.9
kg CO₂e per year from electricity use 18 14 14 15
Specifications
Brand LC-Power Itek MSI Acer
Model LC-M34-UWQHD-144-C ITMC34V181WQHD MAG 346CQ EI342CKR
Energy class G F F G
Screen size 34″ (86 cm) 34″ (86.4 cm) 34″ (87 cm) 34″ (86.4 cm)
Power in on mode (SDR) 39 W 30.2 W 31 W 31.9 W
Standby 0.5 W 0.5 W 0.5 W 0.4 W
Off mode 0.3 W 0.3 W 0.3 W 0.3 W
Resolution 3440 × 1440 3440 × 1440 3440 × 1440 3440 × 1440
Aspect ratio 21:9 21:9 16:9 21:9
Panel LED LCD LED LCD LED LCD LCD
Refresh rate 144 Hz 165 Hz 180 Hz 144 Hz
Power supply Internal Internal Internal Internal
Guaranteed support 10 years 7 years 3 years 7 years
Software updates 10 years 8 years 8 years 8 years
Spare parts available 10 years 7 years 3 years 7 years
On the market since July 23, 2020 May 15, 2024 January 31, 2025 March 31, 2021
EPREL registration number 345088 2013813 2223008 372019
Energy class (HDR) – G G G
Power in on mode (HDR) – 54.5 W 51 W 51.2 W

Rows where the models differ are highlighted.