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3 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-40JX850B €22.33
  • Luxor LFHD40HDR10 €15.30
  • JVC LT-40CF890 €19.02
Model Panasonic TX-40JX850B Luxor LFHD40HDR10 JVC LT-40CF890
Running cost
Running cost (per year) €22.33 €15.30 €19.02
over 10 years €223 +€70 over 10 years €153 €190 +€37 over 10 years
kWh per year 78.8 54 67.2
kg CO₂e per year from electricity use 17 11 14
Specifications
Brand Panasonic Luxor JVC
Model TX-40JX850B LFHD40HDR10 LT-40CF890
Energy class G E F
Screen size 40″ (100 cm) 40″ (100.3 cm) 40″ (101.2 cm)
Power in on mode (SDR) 54 W 37 W 46 W
Energy class (HDR) G G G
Power in on mode (HDR) 71 W 75 W 66 W
Standby 0.5 W 0.5 W 0.5 W
Networked standby 1 W 2 W 2 W
Off mode 0.3 W 0.5 W –
Resolution 3840 × 2160 3840 × 2160 3840 × 2160
Aspect ratio 16:9 16:9 16:9
Panel LCD LED LCD LED LCD
Refresh rate 50 Hz 50 Hz 50 Hz
Power supply Internal Internal Internal
Guaranteed support 7 years 2 years –
Software updates 8 years 2 years –
Spare parts available 7 years – –
On the market since June 16, 2021 December 30, 2022 November 4, 2019
EPREL registration number 405887 1372328 357719

Rows where the models differ are highlighted.