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2 TVs side by side.

4 h a day
  • Electricity at €0.2896 per kWh (household price with taxes, Eurostat 2025-S2).
  • 210 g CO₂e per kWh generated in 2023 (European Environment Agency). Counts use only, not manufacturing.

Yearly running cost

Bars in proportion to the energy each model uses.

  • LG OLED77Z29LA €104.86
  • LG OLED77Z39LA €62.15
Model LG OLED77Z29LA LG OLED77Z39LA
Running cost
Running cost (per year) €104.86 €62.15
over 10 years €1,049 +€427 over 10 years €622
kWh per year 362 215
kg CO₂e per year from electricity use 76 45
Specifications
Brand LG LG
Model OLED77Z29LA OLED77Z39LA
Energy class G G
Screen size 77″ (194.7 cm) 77″ (194.7 cm)
Power in on mode (SDR) 248 W 147 W
Energy class (HDR) G G
Power in on mode (HDR) 395 W 245 W
Standby 0.5 W 0.5 W
Networked standby 2 W 2 W
Resolution 7680 × 4320 7680 × 4320
Aspect ratio 16:9 16:9
Panel OLED OLED
Refresh rate 120 Hz 120 Hz
Power supply Internal Internal
Guaranteed support 8 years 8 years
Software updates 8 years 8 years
Spare parts available 8 years 8 years
On the market since February 3, 2022 February 13, 2023
EPREL registration number 1091175 1411807

Rows where the models differ are highlighted.