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

TVs · 77″ · 3840×2160 · OLED

LG OLED77C66LB

E

Uses less electricity than 71% of the 5,642 TVs, 65″ and over on the EU register. At your selected price (European Union) that is €38 a year, €383 over ten years.

Power, SDR
92.7 W
Typical 107 W
Running cost
€38 / year
4 h a day
Power, HDR
260.0 W
2.8× SDR

Near the middle of its group: 13 % below the typical 156 kWh. Class E is the most common class in this group (32% of models). In HDR it draws 260.0 W, 2.8 times its SDR power. LG has 1134 models in this group; this one is number 166 among them. LG sells the same label values under other model names: OLED77C69LB, OLED77C6ELB.

Where it stands

Rank 1,600 of 5,642 TVs, 65″ and over by yearly consumption. 1,599 use less.

Median 156 This model · 135 45 535 kWh ← uses less · uses more →

Next to it in the ranking

  1. E LG OLED77G67LW 135 kWh same
  2. E LG OLED77G68LW 135 kWh same
  3. E LG OLED77C66LB 135 kWh
  4. E LG OLED77C69LB 135 kWh same
  5. E LG OLED77C6ELB 135 kWh same
See the full ranking

What it will cost you

Period OLED77C66LB
1 year €38
5 years €192
10 years €383
15 years €575

Power in SDR and HDR

SDR 92.7 W
HDR 260.0 W
Group median, SDR 107.0 W

Cost by viewing time

Use kWh / yr € / yr
2 hours a day 68 €19
4 hours a day 135 €38
8 hours a day 271 €77

Label and product sheet

Energy class SDR / HDR
E / G
On-mode power SDR
92.7 W
On-mode power HDR
260.0 W
Standby / networked standby
0.5 W / 2.0 W
Screen diagonal
77″
Resolution
3840×2160
Panel
OLED
Refresh rate
120 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.

OLED77C66LB · OLED77C66LA

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

Questions

How much does the LG OLED77C66LB cost to run?

At 4 hours a day it uses about 135 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €38 a year, or €383 over ten years.

Does HDR use more electricity?

Yes. In HDR mode this screen draws 260.0 W instead of 92.7 W, 2.8 times as much. The yearly cost on this page uses SDR, as the label does.