Compare models
4 TVs side by side.
- 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.
Electricity prices in all EU countries
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
- Zephir TAN45-8000 €25.22
| Model | Akai AKTV454JWB Smart | Akai AKTV4650J UHD Smart | Tdsystems K45DLJ12US | Zephir TAN45-8000 |
|---|---|---|---|---|
| Running cost | ||||
| Running cost (per year) | €27.70 | €20.67 | €23.57 | €25.22 |
| over 10 years | €277 +€70 over 10 years | €207 | €236 +€29 over 10 years | €252 +€45 over 10 years |
| kWh per year | 97.8 | 73 | 83.2 | 89.1 |
| kg CO₂e per year from electricity use | 21 | 15 | 17 | 19 |
| Specifications | ||||
| Brand | Akai | Akai | Tdsystems | Zephir |
| Model | AKTV454JWB Smart | AKTV4650J UHD Smart | K45DLJ12US | TAN45-8000 |
| Energy class | G | F | G | G |
| Screen size | 45″ (114 cm) | 45″ (114 cm) | 45″ (113 cm) | 45″ (113 cm) |
| Power in on mode (SDR) | 67 W | 50 W | 57 W | 61 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 | 0.5 W |
| Resolution | 3840 × 2160 | 3840 × 2160 | 3840 × 2160 | 3840 × 2160 |
| Aspect ratio | 16:9 | 16:9 | 16:9 | 16:9 |
| Panel | LED LCD | LED LCD | LED LCD | LED LCD |
| Refresh rate | 60 Hz | 60 Hz | 60 Hz | 60 Hz |
| Power supply | Internal | Internal | Internal | Internal |
| On the market since | July 15, 2021 | February 4, 2021 | October 1, 2020 | September 12, 2022 |
| EPREL registration number | 620879 | 420990 | 490172 | 1350243 |
| Off mode | – | – | 0 W | – |
| Networked standby | – | – | – | 0.5 W |
| Guaranteed support | – | – | – | 1 year |
| Software updates | – | – | – | 1 year |
| Spare parts available | – | – | – | 1 year |
Rows where the models differ are highlighted.