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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.

  • KTC H27P22S €36.59
  • Gamepower RAPID DUAL €7.44
  • Guangdong Songren U270CA1, S270ES1, T270LG1, V270HQ1, Z270PG1 €13.33
Model KTC H27P22S Gamepower RAPID DUAL Guangdong Songren U270CA1, S270ES1, T270LG1, V270HQ1, Z270PG1
Running cost
Running cost (per year) €36.59 €7.44 €13.33
over 10 years €366 +€291 over 10 years €74 €133 +€59 over 10 years
kWh per year 129 26.3 47.1
kg CO₂e per year from electricity use 27 5.5 9.9
Specifications
Brand KTC Gamepower Guangdong Songren
Model H27P22S RAPID DUAL U270CA1, S270ES1, T270LG1, V270HQ1, Z270PG1
Energy class G E E
Screen size 27″ (68.6 cm) 27″ (68.6 cm) 27″ (68.6 cm)
Power in on mode (SDR) 59 W 12 W 21.5 W
Energy class (HDR) G – –
Power in on mode (HDR) 63 W – –
Standby 0.3 W 0.3 W 0.5 W
Off mode 0.2 W 0.2 W 0.3 W
Resolution 3840 × 2160 3840 × 2160 3840 × 2160
Aspect ratio 16:9 16:9 16:9
Panel TFT-LCD LCD LCD
Refresh rate 160 Hz 160 Hz 160 Hz
Power supply Internal External External
On the market since July 29, 2025 December 27, 2024 February 5, 2026
EPREL registration number 2103648 2231730 2623756
Networked standby – 0.4 W 0 W
Guaranteed support – – 1 year
Software updates – – 1 year
Spare parts available – – 1 year

Rows where the models differ are highlighted.