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

Monitors · 34″ · 3440×1440 · OLED

LG 34GX900A

G

Uses less electricity than 44% of the 1,482 monitors, 32–42″ on the EU register. At your selected price (European Union) that is €13 a year, €132 over ten years.

Power, SDR
31.9 W
Typical 31 W
Running cost
€13 / year
4 h a day
Power, HDR
35.5 W
1.1× SDR

Near the middle of its group: 2 % above the typical 46 kWh. 73% of comparable models reach a better class than G; the most common is F. On-mode power in SDR is 31.9 W; the typical screen of this size draws 31.5 W. LG has 244 models in this group; this one is number 101 among them. LG sells the same label values under other model names: 34GX90DA.

Where it stands

Rank 807 of 1,482 monitors, 32–42″ by yearly consumption. 806 use less.

Median 46 This model · 47 5 135 kWh ← uses less · uses more →

Next to it in the ranking

  1. G LG 34G60ZA 47 kWh same
  2. G LG A34G6D0 47 kWh same
  3. G LG 34GX900A 47 kWh
  4. G LG 34GX90DA 47 kWh same
  5. F LG 32GS85Q 47 kWh same
See the full ranking

What it will cost you

Period 34GX900A LX34 ZA Difference
1 year €13 €2 −€11
5 years €66 €12 −€54
10 years €132 €24 −€108
15 years €198 €35 −€163

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 31.9 W
HDR 35.5 W
Group median, SDR 31.5 W

Cost by viewing time

Use kWh / yr € / yr
2 hours a day 23 €7
4 hours a day 47 €13
8 hours a day 93 €26

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 34GX900A (this model)
34″31.9 47 — —
34″5.7 8 €11 €108
34″5.7 8 €11 €108
34″8.0 12 €10 €99
34″15.9 23 €7 €66
34″20.0 29 €5 €49

Label and product sheet

Energy class SDR / HDR
G / G
On-mode power SDR
31.9 W
On-mode power HDR
35.5 W
Standby / networked standby
0.5 W
Screen diagonal
34″
Resolution
3440×1440
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.

34GX900A

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

Questions

How much does the LG 34GX900A cost to run?

At 4 hours a day it uses about 47 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €13 a year, or €132 over ten years.

Does HDR use more electricity?

Yes. In HDR mode this screen draws 35.5 W instead of 31.9 W, 1.1 times as much. The yearly cost on this page uses SDR, as the label does.