EnergyLabelEU
EN
Costs for 0.283 €/kWh · Eurostat 2026 H1

Monitors · 27″ · 3840×2160 · OLED

HKC GS27UK

F

Uses less electricity than 20% of the 4,819 monitors, 24–31″ on the EU register. At your selected price (European Union) that is €10 a year, €103 over ten years.

Power, SDR
25.0 W
Typical 21 W
Running cost
€10 / year
4 h a day
Power, HDR
27.0 W
1.1× SDR

Uses more than most comparable models: 80 % of them need less. Teamgee TG-S10 PRO, the most efficient alternative on sale, saves about €8 a year. 65% of comparable models reach a better class than F; the most common is E. On-mode power in SDR is 25.0 W; the typical screen of this size draws 20.5 W. HKC has 27 models in this group; this one is number 13 among them.

Where it stands

Rank 3,640 of 4,819 monitors, 24–31″ by yearly consumption. 3,639 use less.

Median 30 This model · 37 5 115 kWh ← uses less · uses more →

Next to it in the ranking

  1. F AOC AG276QKD2 37 kWh same
  2. F AOC Q27G4SDR 37 kWh same
  3. F HKC GS27UK 37 kWh
  4. F Majesty MAS1-272K01 37 kWh same
  5. F Majesty MAS1-272K02 37 kWh same
See the full ranking

What it will cost you

Period GS27UK TG-S10 PRO Difference
1 year €10 €2 −€8
5 years €52 €11 −€41
10 years €103 €22 −€82
15 years €155 €32 −€123

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 25.0 W
HDR 27.0 W
Group median, SDR 20.5 W

Cost by viewing time

Use kWh / yr € / yr
2 hours a day 18 €5
4 hours a day 37 €10
8 hours a day 73 €21

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 HKC GS27UK (this model)
27″25.0 37 — —
28″5.2 8 €8 €82
27″7.0 10 €7 €74
27″7.0 10 €7 €74
27″7.0 10 €7 €74
27″8.0 12 €7 €70

Label and product sheet

Energy class SDR / HDR
F / G
On-mode power SDR
25.0 W
On-mode power HDR
27.0 W
Standby / networked standby
0.5 W
Screen diagonal
27″
Resolution
3840×2160
Panel
OLED
Refresh rate
60 Hz
Software updates (minimum)
8 years
Guarantee (supplier)
3 years
Spare parts (minimum)
7 years

Model numbers and history

Registered by HKC under one model number.

GS27UK

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

Questions

How much does the HKC GS27UK cost to run?

At 4 hours a day it uses about 37 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €10 a year, or €103 over ten years.

Does HDR use more electricity?

Yes. In HDR mode this screen draws 27.0 W instead of 25.0 W, 1.1 times as much. The yearly cost on this page uses SDR, as the label does.