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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.

Electricity prices in all EU countries

  • Svive

    40D701
    G 40″QHDLCD / LED144 Hz

    €29.77 per year

    +€9.18 a year

  • Cheapest to run

    Blackstorm

    GM-40UWQHD144Hz
    F 40″QHDLCD / LED144 Hz

    €20.59 per year

  • Gawfolk

    GF400D
    F 40″QHDLCD / LED200 Hz

    €23.32 per year

    +€2.73 a year

  • LC-Power

    LC-M40-UWQHD-144
    G 40″QHDLCD / LED144 Hz

    €24.81 per year

    +€4.22 a year

Yearly running cost

Bars in proportion to the energy each model uses.

  • Svive 40D701 €29.77
  • Blackstorm GM-40UWQHD144Hz €20.59
  • Gawfolk GF400D €23.32
  • LC-Power LC-M40-UWQHD-144 €24.81
Model Svive 40D701 Blackstorm GM-40UWQHD144Hz Gawfolk GF400D LC-Power LC-M40-UWQHD-144
Running cost
Running cost (per year) €29.77 €20.59 €23.32 €24.81
over 10 years €298 +€92 over 10 years €206 €233 +€27 over 10 years €248 +€42 over 10 years
kWh per year 105 72.7 82.3 87.6
kg CO₂e per year from electricity use 22 15 17 18
Specifications
Brand Svive Blackstorm Gawfolk LC-Power
Model 40D701 GM-40UWQHD144Hz GF400D LC-M40-UWQHD-144
Energy class G F F G
Screen size 40″ (100 cm) 40″ (100.4 cm) 40″ (97.2 cm) 40″ (101.6 cm)
Power in on mode (SDR) 48 W 33.2 W 37.6 W 40 W
Energy class (HDR) G G – G
Power in on mode (HDR) 52 W 51.5 W – 68.7 W
Standby 0.4 W 0.3 W 0.2 W 0.5 W
Off mode 0.3 W 0.2 W 0.2 W 0.3 W
Resolution 3440 × 1440 3440 × 1440 3440 × 1440 3440 × 1440
Aspect ratio 21:9 21:9 21:9 21:9
Panel LCD LCD LCD LED LCD
Refresh rate 144 Hz 144 Hz 200 Hz 144 Hz
Power supply Internal Internal External Internal
Guaranteed support 10 years 2 years 1 year 7 years
Software updates 10 years 8 years 1 year 8 years
Spare parts available 10 years 7 years 1 year 8 years
On the market since December 30, 2021 August 1, 2025 August 26, 2026 October 1, 2021
EPREL registration number 1100929 2416269 2831110 758509
Networked standby – – 0 W –

Rows where the models differ are highlighted.