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

Monitors · 34″ · 2560×1080 · LED LCD

LG 34WN650

G

Uses less electricity than 15% of the 1,482 monitors, 32–42″ on the EU register. At your selected price (European Union) that is €14 a year, €144 over ten years.

Power, SDR
34.7 W
Typical 31 W
Running cost
€14 / year
4 h a day
Power, HDR
35.7 W
1.0× SDR

Uses more than most comparable models: 85 % of them need less. LXZ LX34 ZA, the most efficient alternative on sale, saves about €12 a year. 73% of comparable models reach a better class than G; the most common is F. On-mode power in SDR is 34.7 W; the typical screen of this size draws 31.5 W. LG has 244 models in this group; this one is number 177 among them. On the register since 2021 and still on sale.

Where it stands

Rank 1,255 of 1,482 monitors, 32–42″ by yearly consumption. 1,254 use less.

Median 46 This model · 51 5 135 kWh ← uses less · uses more →

Next to it in the ranking

  1. G Gawfolk GF340E 51 kWh same
  2. G Suevery SV340ZA 51 kWh same
  3. G LG 34WN650 51 kWh
  4. F Dell U3824DW 51 kWh +€0.03
  5. G 2E R3426B 51 kWh +€0.11
See the full ranking

What it will cost you

Period 34WN650 LX34 ZA Difference
1 year €14 €2 −€12
5 years €72 €12 −€60
10 years €144 €24 −€120
15 years €215 €35 −€180

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 34.7 W
HDR 35.7 W
Group median, SDR 31.5 W

Cost by viewing time

Use kWh / yr € / yr
2 hours a day 25 €7
4 hours a day 51 €14
8 hours a day 101 €29

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 34WN650 (this model)
34″34.7 51 — —
34″5.7 8 €12 €120
34″5.7 8 €12 €120
34″8.0 12 €11 €110
34″15.9 23 €8 €78
34″20.0 29 €6 €61

Label and product sheet

Energy class SDR / HDR
G / G
On-mode power SDR
34.7 W
On-mode power HDR
35.7 W
Standby / networked standby
0.5 W
Screen diagonal
34″
Resolution
2560×1080
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

Registered by LG under one model number.

34WN650

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

Questions

How much does the LG 34WN650 cost to run?

At 4 hours a day it uses about 51 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 €144 over ten years.

Does HDR use more electricity?

Yes. In HDR mode this screen draws 35.7 W instead of 34.7 W, 1.0 times as much. The yearly cost on this page uses SDR, as the label does.