EnergyLabelEU
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Costs for 0.283 €/kWh · Eurostat 2026 H1

Monitors · 12″ · 1920×1280 · LCD

Hailesi S123E

B

Uses less electricity than 84% of the 2,372 monitors, under 24″ on the EU register. At your selected price (European Union) that is €2 a year, €20 over ten years.

Power, SDR
4.7 W
Typical 8 W
Running cost
€2 / year
4 h a day
Power, HDR
7.6 W
1.6× SDR

In the most efficient quarter of its group: 40 % below the typical 12 kWh. Only 25% of comparable models have a better class than B. In HDR it draws 7.6 W, 1.6 times its SDR power. Of 3 Hailesi models in this group, it is the most efficient. Registered in Jul 2026, one of the newer models in its group.

Where it stands

Rank 354 of 2,372 monitors, under 24″ by yearly consumption. 353 use less.

Median 12 This model · 7 0 75 kWh ← uses less · uses more →

Next to it in the ranking

  1. A Ufyql M185B1 7 kWh same
  2. A Dhpl W185B1 7 kWh same
  3. B Hailesi S123E 7 kWh
  4. B Hailesi S135 7 kWh same
  5. B Hailesi S123 7 kWh same
See the full ranking

What it will cost you

Period S123E SY10FN60 Difference
1 year €2 €1 −€1
5 years €10 €4 −€5
10 years €20 €9 −€11
15 years €29 €13 −€16

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

SDR 4.7 W
HDR 7.6 W
Group median, SDR 7.9 W

Cost by viewing time

Use kWh / yr € / yr
2 hours a day 3 €1
4 hours a day 7 €2
8 hours a day 14 €4

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
B Hailesi S123E (this model)
12″4.7 7 — —
11″2.1 3 €1 €11
11″2.6 4 €1 €9
11″2.7 4 €1 €8
11″3.0 4 €1 €7
11″3.0 4 €1 €7

Label and product sheet

Energy class SDR / HDR
B / D
On-mode power SDR
4.7 W
On-mode power HDR
7.6 W
Standby / networked standby
0.3 W / 0.0 W
Screen diagonal
12″
Resolution
1920×1280
Panel
LCD
Refresh rate
60 Hz
Software updates (minimum)
3 years
Guarantee (supplier)
3 years
Spare parts (minimum)
3 years

Model numbers and history

Registered by Hailesi under one model number.

S123E

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

Questions

How much does the Hailesi S123E cost to run?

At 4 hours a day it uses about 7 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €2 a year, or €20 over ten years.

Does HDR use more electricity?

Yes. In HDR mode this screen draws 7.6 W instead of 4.7 W, 1.6 times as much. The yearly cost on this page uses SDR, as the label does.