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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.

  • Samsung TQ50QN74HAU €20.67
  • Topmax TM500K2 €6.20
  • Toshiba 50QF2663DAZ €14.88
Model Samsung TQ50QN74HAU Topmax TM500K2 Toshiba 50QF2663DAZ
Running cost
Running cost (per year) €20.67 €6.20 €14.88
over 10 years €207 +€145 over 10 years €62 €149 +€87 over 10 years
kWh per year 73 21.9 52.6
kg CO₂e per year from electricity use 15 4.6 11
Specifications
Brand Samsung Topmax Toshiba
Model TQ50QN74HAU TM500K2 50QF2663DAZ
Energy class E C C
Screen size 50″ (125 cm) 50″ (126 cm) 50″ (126 cm)
Power in on mode (SDR) 50 W 15 W 36 W
Energy class (HDR) G – G
Power in on mode (HDR) 112 W – 66 W
Standby 0.5 W 0.5 W 0.5 W
Networked standby 2 W – 2 W
Resolution 3840 × 2160 3840 × 2160 3840 × 2160
Aspect ratio 16:9 16:9 16:9
Panel QLED LCD LED LCD QLED LCD
Refresh rate 60 Hz 60 Hz 50 Hz
Power supply Internal External Internal
Guaranteed support 7 years 7 years 7 years
Software updates 8 years – 8 years
Spare parts available 7 years 8 years 7 years
On the market since June 8, 2026 July 13, 2022 January 15, 2026
EPREL registration number 2571545 1279608 2570132
Off mode – 0.3 W –

Rows where the models differ are highlighted.