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2 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.

  • Acer XF273 S €13.33
  • Guangzhou changhong audio-visual electronic products M-27LFK1Q165 €4.34
Model Acer XF273 S Guangzhou changhong audio-visual electronic products M-27LFK1Q165
Running cost
Running cost (per year) €13.33 €4.34
over 10 years €133 +€90 over 10 years €43
kWh per year 47.1 15.3
kg CO₂e per year from electricity use 9.9 3.2
Specifications
Brand Acer Guangzhou changhong audio-visual electronic products
Model XF273 S M-27LFK1Q165
Energy class E C
Screen size 27″ (68.6 cm) 27″ (70 cm)
Power in on mode (SDR) 21.5 W 7 W
Energy class (HDR) G –
Power in on mode (HDR) 49 W –
Standby 0.5 W 0.3 W
Off mode 0.3 W 0 W
Resolution 1920 × 1080 1920 × 1080
Aspect ratio 16:9 16:9
Panel LED LCD LED LCD
Refresh rate 144 Hz 165 Hz
Power supply Internal External
Guaranteed support 7 years 1 year
Software updates 8 years 1 year
Spare parts available 7 years 1 year
On the market since March 31, 2021 November 6, 2024
EPREL registration number 414258 2189238
Networked standby – 0 W

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