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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.

  • Mammouth MTDTVK 400 F S BT 2 €16.13
  • Nilait NI-40FD7004SVIOS €14.88
Model Mammouth MTDTVK 400 F S BT 2 Nilait NI-40FD7004SVIOS
Running cost
Running cost (per year) €16.13 €14.88
over 10 years €161 +€12 over 10 years €149
kWh per year 56.9 52.6
kg CO₂e per year from electricity use 12 11
Specifications
Brand Mammouth Nilait
Model MTDTVK 400 F S BT 2 NI-40FD7004SVIOS
Energy class F E
Screen size 39″ (101 cm) 39″ (100.3 cm)
Power in on mode (SDR) 39 W 36 W
Standby 0.3 W 0.5 W
Resolution 1920 × 1080 1920 × 1080
Aspect ratio 16:9 16:9
Panel LED LCD LED LCD
Refresh rate 60 Hz 60 Hz
Power supply Internal Internal
On the market since January 30, 2026 January 12, 2026
EPREL registration number 2468544 2576361
Energy class (HDR) – F
Power in on mode (HDR) – 39 W
Networked standby – 2 W

Rows where the models differ are highlighted.