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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.

  • Lenovo L15(A21156FX0) €4.96
  • Dahua DHI-PM16-S201PD €3.41
  • ASUS MQ16AH €3.72
Model Lenovo L15(A21156FX0) Dahua DHI-PM16-S201PD ASUS MQ16AH
Running cost
Running cost (per year) €4.96 €3.41 €3.72
over 10 years €50 +€16 over 10 years €34 €37 +€3 over 10 years
kWh per year 17.5 12 13.1
kg CO₂e per year from electricity use 3.7 2.5 2.8
Specifications
Brand Lenovo Dahua ASUS
Model L15(A21156FX0) DHI-PM16-S201PD MQ16AH
Energy class C B B
Screen size 16″ (40 cm) 16″ (39.6 cm) 16″ (39.6 cm)
Power in on mode (SDR) 8 W 5.5 W 6 W
Standby 0.4 W 0.5 W 0.5 W
Off mode 0.3 W 0.3 W 0.3 W
Resolution 1920 × 1080 1920 × 1080 1920 × 1080
Aspect ratio 16:9 16:9 16:9
Panel LED LCD LED LCD OLED
Refresh rate 60 Hz 60 Hz 60 Hz
Power supply External Internal External
Guaranteed support 7 years 15 years 7 years
Software updates 8 years 8 years 8 years
Spare parts available 7 years 7 years 7 years
On the market since July 5, 2021 April 16, 2026 May 9, 2022
EPREL registration number 722285 2695283 1155369
Energy class (HDR) – D E
Power in on mode (HDR) – 8 W 12 W

Rows where the models differ are highlighted.