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2 TVs side by side.

4 h a day
  • Electricity at €0.2832 per kWh (household price with taxes, Eurostat 2026-S1).
  • 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.

  • Panasonic TX-42LZ800E €21.50
  • Elit L-4221UHDTS2 €16.54
Model Panasonic TX-42LZ800E Elit L-4221UHDTS2
Running cost
Running cost (per year) €21.50 €16.54
over 10 years €215 +€50 over 10 years €165
kWh per year 75.9 58.4
kg CO₂e per year from electricity use 16 12
Specifications
Brand Panasonic Elit
Model TX-42LZ800E L-4221UHDTS2
Energy class G E
Screen size 42″ (106 cm) 42″ (105.4 cm)
Power in on mode (SDR) 52 W 40 W
Energy class (HDR) G G
Power in on mode (HDR) 70 W 92 W
Standby 0.5 W 0.5 W
Networked standby 1 W 2 W
Off mode 0.3 W –
Resolution 3840 × 2160 3840 × 2160
Aspect ratio 16:9 16:9
Panel OLED LED LCD
Refresh rate 100 Hz 50 Hz
Power supply Internal Internal
Guaranteed support 7 years –
Software updates 8 years –
Spare parts available 7 years –
On the market since November 29, 2022 December 20, 2021
EPREL registration number 1106006 1003100

Rows where the models differ are highlighted.