EnergyLabelEU
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Costs for 0.283 €/kWh · Eurostat 2026 H1

Monitors · 40″ · 5120×2160 · LED LCD

LG 40BU950C

F

Uses less electricity than 5% of the 1,482 monitors, 32–42″ on the EU register. At your selected price (European Union) that is €16 a year, €164 over ten years.

Power, SDR
39.6 W
Typical 31 W
Running cost
€16 / year
4 h a day
Power, HDR
62.0 W
1.6× SDR

Uses more than most comparable models: 95 % of them need less. ShenzhenGuoruitongTechnologyCoLtd G156F, the most efficient alternative on sale, saves about €14 a year. Class F is the most common class in this group (51% of models). In HDR it draws 62.0 W, 1.6 times its SDR power. LG has 244 models in this group; this one is number 221 among them. LG sells the same label values under other model names: 40U990C, C40U9D9. Registered in Oct 2026, one of the newer models in its group.

Where it stands

Rank 1,395 of 1,482 monitors, 32–42″ by yearly consumption. 1,394 use less.

Median 46 This model · 58 5 135 kWh ← uses less · uses more →

Next to it in the ranking

  1. F LG 40WP95XP 58 kWh −€0.03
  2. G LG 34WL850 58 kWh −€0.03
  3. F LG 40BU950C 58 kWh
  4. F LG 40U990C 58 kWh same
  5. F LG C40U9D9 58 kWh same
See the full ranking

What it will cost you

Period 40BU950C G156F Difference
1 year €16 €3 −€14
5 years €82 €13 −€69
10 years €164 €26 −€138
15 years €246 €39 −€206

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 39.6 W
HDR 62.0 W
Group median, SDR 31.5 W

Cost by viewing time

Use kWh / yr € / yr
2 hours a day 29 €8
4 hours a day 58 €16
8 hours a day 116 €33

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 LG 40BU950C (this model)
40″39.6 58 — —
40″6.3 9 €14 €138
40″7.4 11 €13 €133
39″15.7 23 €10 €99
40″29.0 42 €4 €44
40″31.0 45 €4 €35

Label and product sheet

Energy class SDR / HDR
F / G
On-mode power SDR
39.6 W
On-mode power HDR
62.0 W
Standby / networked standby
0.5 W
Screen diagonal
40″
Resolution
5120×2160
Panel
LED LCD
Refresh rate
60 Hz
Software updates (minimum)
8 years
Guarantee (supplier)
1 years
Spare parts (minimum)
8 years

Model numbers and history

2 model numbers are registered by LG with identical label values (usually colour or market variants). Searching any of them leads here.

40BU950C · 40BU950D

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

Questions

How much does the LG 40BU950C cost to run?

At 4 hours a day it uses about 58 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €16 a year, or €164 over ten years.

Does HDR use more electricity?

Yes. In HDR mode this screen draws 62.0 W instead of 39.6 W, 1.6 times as much. The yearly cost on this page uses SDR, as the label does.