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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.

  • Acer KA242Y €11.16
  • ASUS VY249HF-W €6.82
  • Nilox NXM24FHD1204 €8.56
Model Acer KA242Y ASUS VY249HF-W Nilox NXM24FHD1204
Running cost
Running cost (per year) €11.16 €6.82 €8.56
over 10 years €112 +€43 over 10 years €68 €86 +€17 over 10 years
kWh per year 39.4 24.1 30.2
kg CO₂e per year from electricity use 8.3 5.1 6.3
Specifications
Brand Acer ASUS Nilox
Model KA242Y VY249HF-W NXM24FHD1204
Energy class E C D
Screen size 24″ (60.5 cm) 24″ (60.5 cm) 24″ (60.4 cm)
Power in on mode (SDR) 18 W 11 W 13.8 W
Standby 0.5 W 0.2 W 0.3 W
Off mode 0.3 W 0.1 W 0.2 W
Resolution 1920 × 1080 1920 × 1080 1920 × 1080
Aspect ratio 16:9 16:9 16:9
Panel LED LCD LED LCD LED LCD
Refresh rate 75 Hz 100 Hz 120 Hz
Power supply Internal External External
Guaranteed support 7 years 7 years 3 years
Software updates 8 years 8 years 5 years
Spare parts available 7 years 7 years 5 years
On the market since October 29, 2017 September 22, 2023 December 23, 2025
EPREL registration number 402232 1676096 2523423

Rows where the models differ are highlighted.