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3 monitors side by side.

6 h a day
  • 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.

Yearly running cost

Bars in proportion to the energy each model uses.

  • LC-Power LC-M27-4K-UHD-144 €18.61
  • Gamepower RAPID DUAL €7.44
  • Guangdong Songren U270CA1, S270ES1, T270LG1, V270HQ1, Z270PG1 €13.33
Model LC-Power LC-M27-4K-UHD-144 Gamepower RAPID DUAL Guangdong Songren U270CA1, S270ES1, T270LG1, V270HQ1, Z270PG1
Running cost
Running cost (per year) €18.61 €7.44 €13.33
over 10 years €186 +€112 over 10 years €74 €133 +€59 over 10 years
kWh per year 65.7 26.3 47.1
kg CO₂e per year from electricity use 14 5.5 9.9
Specifications
Brand LC-Power Gamepower Guangdong Songren
Model LC-M27-4K-UHD-144 RAPID DUAL U270CA1, S270ES1, T270LG1, V270HQ1, Z270PG1
Energy class G E E
Screen size 27″ (69 cm) 27″ (68.6 cm) 27″ (68.6 cm)
Power in on mode (SDR) 30 W 12 W 21.5 W
Energy class (HDR) G – –
Power in on mode (HDR) 44 W – –
Standby 0.3 W 0.3 W 0.5 W
Off mode 0.3 W 0.2 W 0.3 W
Resolution 3840 × 2160 3840 × 2160 3840 × 2160
Aspect ratio 16:9 16:9 16:9
Panel LCD LCD LCD
Refresh rate 144 Hz 160 Hz 160 Hz
Power supply STANDARD EXTERNAL External External
Guaranteed support 10 years – 1 year
Software updates 10 years – 1 year
Spare parts available 10 years – 1 year
On the market since April 1, 2021 December 27, 2024 February 5, 2026
EPREL registration number 563437 2231730 2623756
Networked standby – 0.4 W 0 W

Rows where the models differ are highlighted.