EnergyLabelEU
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Costs for 0.283 €/kWh · Eurostat 2026 H1

Monitors · 34″ · 3440×1440 · LED LCD

Tanxjia U340U-Pro

F

Uses less electricity than 70% of the 1,482 monitors, 32–42″ on the EU register. At your selected price (European Union) that is €12 a year, €123 over ten years.

Power, SDR
29.8 W
Typical 31 W
Running cost
€12 / year
4 h a day

Near the middle of its group: 5 % below the typical 46 kWh. Class F is the most common class in this group (51% of models). On-mode power in SDR is 29.8 W; the typical screen of this size draws 31.5 W. It is the only Tanxjia model in this group.

Where it stands

Rank 429 of 1,482 monitors, 32–42″ by yearly consumption. 428 use less.

Median 46 This model · 44 5 135 kWh ← uses less · uses more →

Next to it in the ranking

  1. F LG 32U720SA 43 kWh −€0.03
  2. F LG 32U721SA 43 kWh −€0.03
  3. F Tanxjia U340U-Pro 44 kWh
  4. F Acer CB322QK 44 kWh same
  5. F Acer X32 X2 44 kWh +€0.06
See the full ranking

What it will cost you

Period U340U-Pro LX34 ZA Difference
1 year €12 €2 −€10
5 years €62 €12 −€50
10 years €123 €24 −€100
15 years €185 €35 −€150

Is the more efficient model worth its price?

Years of use

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 22 €6
4 hours a day 44 €12
8 hours a day 87 €25

Same size, lower running cost

On sale, at least 10% less energy, same size group

Model SizeSDR W kWh / yr Saves / year in 10 years
F Tanxjia U340U-Pro (this model)
34″29.8 44 — —
34″5.7 8 €10 €100
34″5.7 8 €10 €100
34″8.0 12 €9 €90
34″15.9 23 €6 €57
34″20.0 29 €4 €40

Label and product sheet

Energy class SDR / HDR
F / –
On-mode power SDR
29.8 W
Standby / networked standby
0.2 W / 0.0 W
Screen diagonal
34″
Resolution
3440×1440
Panel
LED LCD
Refresh rate
165 Hz
Software updates (minimum)
1 years
Guarantee (supplier)
1 years
Spare parts (minimum)
1 years

Model numbers and history

Registered by Tanxjia under one model number.

U340U-Pro

  1. First published in the EU register (EPREL)
  2. Placed on the EU market

Questions

How much does the Tanxjia U340U-Pro cost to run?

At 4 hours a day it uses about 44 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €12 a year, or €123 over ten years.