EnergyLabelEU
EN
Costs for 0.283 €/kWh · Eurostat 2026 H1

Monitors · 40″ · 3440×1440 · LCD

Blackstorm GM-40UWQHD144Hz

F

Uses less electricity than 17% of the 1,482 monitors, 32–42″ on the EU register. At your selected price (European Union) that is €14 a year, €137 over ten years.

Power, SDR
33.2 W
Typical 31 W
Running cost
€14 / year
4 h a day
Power, HDR
51.5 W
1.6× SDR

Uses more than most comparable models: 83 % of them need less. ShenzhenGuoruitongTechnologyCoLtd G156F, the most efficient alternative on sale, saves about €11 a year. Class F is the most common class in this group (51% of models). In HDR it draws 51.5 W, 1.6 times its SDR power. Blackstorm has 7 models in this group; this one is number 5 among them.

Where it stands

Rank 1,216 of 1,482 monitors, 32–42″ by yearly consumption. 1,215 use less.

Median 46 This model · 49 5 135 kWh ← uses less · uses more →

Next to it in the ranking

  1. G LG 32GQ85X 48 kWh −€0.06
  2. G MSI MAG 321UP QD-OLED X24 49 kWh same
  3. F Blackstorm GM-40UWQHD144Hz 49 kWh
  4. G Samsung S32B800PXP 49 kWh same
  5. G MSI MAG 321CUPDF 49 kWh same
See the full ranking

What it will cost you

Period GM-40UWQHD144Hz G156F Difference
1 year €14 €3 −€11
5 years €69 €13 −€56
10 years €137 €26 −€111
15 years €206 €39 −€167

Is the more efficient model worth its price?

Years of use

Enter both purchase prices to see the total cost of ownership.

Power in SDR and HDR

SDR 33.2 W
HDR 51.5 W
Group median, SDR 31.5 W

Cost by viewing time

Use kWh / yr € / yr
2 hours a day 24 €7
4 hours a day 48 €14
8 hours a day 97 €27

Same size, lower running cost

On sale, at least 10% less energy, same size group

Model SizeSDR W kWh / yr Saves / year in 10 years
F Blackstorm GM-40UWQHD144Hz (this model)
40″33.2 49 — —
C ShenzhenGuoruitongTechnologyCoLtd G156F compare
40″6.3 9 €11 €111
C Hannspree HL162CPB(HSG1444) compare
40″7.4 11 €11 €107
A ShiJiRongLi Technology Development X90G compare
39″15.7 23 €7 €72
D Hannspree HL400UPB(HSG1467) compare
40″29.0 42 €2 €18

Label and product sheet

Energy class SDR / HDR
F / G
On-mode power SDR
33.2 W
On-mode power HDR
51.5 W
Standby / networked standby
0.3 W
Screen diagonal
40″
Resolution
3440×1440
Panel
LCD
Refresh rate
144 Hz
Software updates (minimum)
8 years
Guarantee (supplier)
2 years
Spare parts (minimum)
7 years

Model numbers and history

Registered by Blackstorm under one model number.

GM-40UWQHD144Hz

  1. First published in the EU register (EPREL)
  2. Placed on the EU market

Questions

How much does the Blackstorm GM-40UWQHD144Hz cost to run?

At 4 hours a day it uses about 49 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €14 a year, or €137 over ten years.

Does HDR use more electricity?

Yes. In HDR mode this screen draws 51.5 W instead of 33.2 W, 1.6 times as much. The yearly cost on this page uses SDR, as the label does.