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

Monitors · 39″ · 5120×2160 · OLED

LG 39GX950B

G

Uses less electricity than 4% of the 1,482 monitors, 32–42″ on the EU register. At your selected price (European Union) that is €17 a year, €167 over ten years.

Power, SDR
40.3 W
Typical 31 W
Running cost
€17 / year
4 h a day
Power, HDR
45.9 W
1.1× SDR

Uses more than most comparable models: 96 % of them need less. ShenzhenGuoruitongTechnologyCoLtd G156F, the most efficient alternative on sale, saves about €14 a year. 73% of comparable models reach a better class than G; the most common is F. On-mode power in SDR is 40.3 W; the typical screen of this size draws 31.5 W. LG has 244 models in this group; this one is number 232 among them.

Where it stands

Rank 1,419 of 1,482 monitors, 32–42″ by yearly consumption. 1,418 use less.

Median 46 This model · 59 5 135 kWh ← uses less · uses more →

Next to it in the ranking

  1. G Alienware AW3926QW 59 kWh same
  2. G LG 39GX90SA 59 kWh same
  3. G LG 39GX950B 59 kWh
  4. F Blackstorm 40B2R 59 kWh same
  5. G LG 35WN65C 59 kWh +€0.06
See the full ranking

What it will cost you

Period 39GX950B G156F Difference
1 year €17 €3 −€14
5 years €83 €13 −€70
10 years €167 €26 −€140
15 years €250 €39 −€211

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 40.3 W
HDR 45.9 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 59 €17
8 hours a day 118 €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
G LG 39GX950B (this model)
39″40.3 59 — —
40″6.3 9 €14 €140
38″6.7 10 €14 €139
40″7.4 11 €14 €136
39″15.7 23 €10 €102
38″25.9 38 €6 €59

Label and product sheet

Energy class SDR / HDR
G / G
On-mode power SDR
40.3 W
On-mode power HDR
45.9 W
Standby / networked standby
0.5 W
Screen diagonal
39″
Resolution
5120×2160
Panel
OLED
Refresh rate
60 Hz
Software updates (minimum)
8 years
Guarantee (supplier)
1 years
Spare parts (minimum)
8 years

Model numbers and history

Registered by LG under one model number.

39GX950B

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

Questions

How much does the LG 39GX950B cost to run?

At 4 hours a day it uses about 59 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €17 a year, or €167 over ten years.

Does HDR use more electricity?

Yes. In HDR mode this screen draws 45.9 W instead of 40.3 W, 1.1 times as much. The yearly cost on this page uses SDR, as the label does.