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

Monitors · 35″ · 3440×1440 · LED LCD

LG 35WN65C

G

Uses less electricity than 3% 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
40.4 W
Typical 31 W
Running cost
€17 / year
4 h a day
Power, HDR
43.0 W
1.1× SDR

Uses more than most comparable models: 97 % of them need less. LXZ LX34 ZA, 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 40.4 W; the typical screen of this size draws 31.5 W. LG has 244 models in this group; this one is number 234 among them. On the register since 2021 and still on sale.

Where it stands

Rank 1,423 of 1,482 monitors, 32–42″ by yearly consumption. 1,422 use less.

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

Next to it in the ranking

  1. G LG 39GX950B 59 kWh −€0.06
  2. F Blackstorm 40B2R 59 kWh −€0.06
  3. G LG 35WN65C 59 kWh
  4. G LG 37U730SA 59 kWh +€0.03
  5. G LG 32GQ950 59 kWh +€0.11
See the full ranking

What it will cost you

Period 35WN65C LX34 ZA Difference
1 year €17 €2 −€14
5 years €84 €12 −€72
10 years €167 €24 −€144
15 years €251 €35 −€215

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 40.4 W
HDR 43.0 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 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 35WN65C (this model)
35″40.4 59 — —
34″5.7 8 €14 €144
34″5.7 8 €14 €144
34″8.0 12 €13 €134
34″15.9 23 €10 €101
34″20.0 29 €8 €84

Label and product sheet

Energy class SDR / HDR
G / G
On-mode power SDR
40.4 W
On-mode power HDR
43.0 W
Standby / networked standby
0.5 W
Screen diagonal
35″
Resolution
3440×1440
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.

35WN65C

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

Questions

How much does the LG 35WN65C 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 43.0 W instead of 40.4 W, 1.1 times as much. The yearly cost on this page uses SDR, as the label does.