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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.

  • Akai AKTV454JWB Smart €27.70
  • Akai AKTV4650J UHD Smart €20.67
  • Tdsystems K45DLJ12US €23.57
Model Akai AKTV454JWB Smart Akai AKTV4650J UHD Smart Tdsystems K45DLJ12US
Running cost
Running cost (per year) €27.70 €20.67 €23.57
over 10 years €277 +€70 over 10 years €207 €236 +€29 over 10 years
kWh per year 97.8 73 83.2
kg CO₂e per year from electricity use 21 15 17
Specifications
Brand Akai Akai Tdsystems
Model AKTV454JWB Smart AKTV4650J UHD Smart K45DLJ12US
Energy class G F G
Screen size 45″ (114 cm) 45″ (114 cm) 45″ (113 cm)
Power in on mode (SDR) 67 W 50 W 57 W
Energy class (HDR) G – G
Power in on mode (HDR) 75 W – 58 W
Standby 0.5 W 0.4 W 0.5 W
Resolution 3840 × 2160 3840 × 2160 3840 × 2160
Aspect ratio 16:9 16:9 16:9
Panel LED LCD LED LCD LED LCD
Refresh rate 60 Hz 60 Hz 60 Hz
Power supply Internal Internal Internal
On the market since July 15, 2021 February 4, 2021 October 1, 2020
EPREL registration number 620879 420990 490172
Off mode – – 0 W

Rows where the models differ are highlighted.