Japannext JN-X5K40
Uses less electricity than 48% of the 1,482 monitors, 32–42″ on the EU register. At your selected price (European Union) that is €13 a year, €130 over ten years.
- Power, SDR
- 31.5 W
- Typical 31 W
- Running cost
- €13 / year
- 4 h a day
- Power, HDR
- 34.6 W
- 1.1× SDR
Right at the typical consumption of its group, 46 kWh a year. Only 4% of comparable models have a better class than E. On-mode power in SDR is 31.5 W; the typical screen of this size draws 31.5 W. Japannext has 33 models in this group; this one is number 26 among them. Registered in Oct 2026, one of the newer models in its group.
Where it stands
Rank 742 of 1,482 monitors, 32–42″ by yearly consumption. 741 use less.
Next to it in the ranking
- ViewSonic VS19271(VP3456a) 46 kWh same
- Acer XZ342CU 46 kWh same
- Japannext JN-X5K40 46 kWh
- Acer X34 F1 46 kWh +€0.03
- LG 32UR500K 46 kWh +€0.03
What it will cost you
| Period | JN-X5K40 | G156F | Difference |
|---|---|---|---|
| 1 year | €13 | €3 | −€10 |
| 5 years | €65 | €13 | −€52 |
| 10 years | €130 | €26 | −€104 |
| 15 years | €195 | €39 | −€156 |
Is the more efficient model worth its price?
Enter both purchase prices to see the total cost of ownership.
Power in SDR and HDR
Cost by viewing time
| Use | kWh / yr | € / yr |
|---|---|---|
| 2 hours a day | 23 | €7 |
| 4 hours a day | 46 | €13 |
| 8 hours a day | 92 | €26 |
Same size, lower running cost
On sale, at least 10% less energy, same size group
| Model | kWh / yr | Saves / year |
|---|---|---|
| Japannext JN-X5K40 (this model) | 46 | — |
| 9 | €10 | |
| 11 | €10 | |
| 23 | €7 |
Label and product sheet
- Energy class SDR / HDR
- E / F
- On-mode power SDR
- 31.5 W
- On-mode power HDR
- 34.6 W
- Standby / networked standby
- 0.3 W
- Screen diagonal
- 40″
- Resolution
- 5120×2160
- Panel
- LED LCD
- Refresh rate
- 75 Hz
- Software updates (minimum)
- 5 years
- Guarantee (supplier)
- 2 years
- Spare parts (minimum)
- 5 years
Model numbers and history
Registered by Japannext under one model number.
JN-X5K40
- First published in the EU register (EPREL)
- Placed on the EU market
Questions
How much does the Japannext JN-X5K40 cost to run?
At 4 hours a day it uses about 46 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €13 a year, or €130 over ten years.
Does HDR use more electricity?
Yes. In HDR mode this screen draws 34.6 W instead of 31.5 W, 1.1 times as much. The yearly cost on this page uses SDR, as the label does.