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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.

  • AOC Q25G4SR €13.02
  • Shenzhen dusun EV19 €4.34
  • Uperfect UP24501,UP24502,UP24503,UP24504,UP24505 €4.96
Model AOC Q25G4SR Shenzhen dusun EV19 Uperfect UP24501,UP24502,UP24503,UP24504,UP24505
Running cost
Running cost (per year) €13.02 €4.34 €4.96
over 10 years €130 +€87 over 10 years €43 €50 +€6 over 10 years
kWh per year 46 15.3 17.5
kg CO₂e per year from electricity use 9.7 3.2 3.7
Specifications
Brand AOC Shenzhen dusun Uperfect
Model Q25G4SR EV19 UP24501,UP24502,UP24503,UP24504,UP24505
Energy class F A A
Screen size 25″ (62 cm) 25″ (62.2 cm) 25″ (62.3 cm)
Power in on mode (SDR) 21 W 7 W 8 W
Energy class (HDR) G – –
Power in on mode (HDR) 40 W – –
Standby 0.3 W 0.5 W 0.1 W
Off mode 0.3 W 0.3 W 0 W
Resolution 2560 × 1440 2560 × 1440 2560 × 1440
Aspect ratio 16:9 16:9 16:9
Panel LED LCD LCD LED LCD
Refresh rate 60 Hz 165 Hz 165 Hz
Power supply Internal External External
Guaranteed support 8 years 1 year 1 year
Software updates 8 years 1 year 1 year
Spare parts available 7 years 1 year 1 year
On the market since March 17, 2025 December 1, 2025 November 25, 2024
EPREL registration number 2244694 2555629 2202781
Networked standby – 0 W 0 W

Rows where the models differ are highlighted.