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Blackstorm

Blackstorm GM-40UWQHD144Hz

  • Monitors
  • 40″
  • QHD
  • LCD / LED
  • 144 Hz

Running cost

€20.59 per year

€206 over 10 years

EU average, 6 h a day

Uses 15% less energy than the average for 40-inch monitors on Wattabill (53 models).

Running cost at a glance

  • €20.59 per year
  • €206 over 10 years
  • 72.7 kWh per year
  • 15 kg CO₂e per year from electricity use
This model
Average for 40-inch monitors (53)

Your country and usage

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.

We assume prices stay the same over the years.

Electricity prices in all EU countries

Specifications

BrandBlackstorm
ModelGM-40UWQHD144Hz
Energy classF
Screen size40″ (100.4 cm)
Power in on mode (SDR)33.2 W
Energy class (HDR)G
Power in on mode (HDR)51.5 W
Standby0.3 W
Off mode0.2 W
Resolution3440 × 1440
Aspect ratio21:9
PanelLCD
Refresh rate144 Hz
Power supplyInternal
Guaranteed support2 years
Software updates8 years
Spare parts available7 years
On the market sinceAugust 1, 2025
EPREL registration number2416269

Source: EPREL, European Commission. Data updated October 13, 2026.