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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.

  • Legamaster EXP-7510 €83.73
  • Dell P7525QT €79.39
  • Legamaster EXP-7500 €70.08
Model Legamaster EXP-7510 Dell P7525QT Legamaster EXP-7500
Running cost
Running cost (per year) €83.73 €79.39 €70.08
over 10 years €837 +€136 over 10 years €794 +€93 over 10 years €701
kWh per year 296 280 247
kg CO₂e per year from electricity use 62 59 52
Specifications
Brand Legamaster Dell Legamaster
Model EXP-7510 P7525QT EXP-7500
Energy class C F C
Screen size 75″ (190.5 cm) 75″ (189.3 cm) 75″ (190.5 cm)
Power in on mode (SDR) 135 W 128 W 113 W
Standby 0.5 W 0.5 W 0.5 W
Networked standby 0 W 1.9 W 0.5 W
Off mode 0 W 0.3 W 0 W
Resolution 3840 × 2160 3840 × 2160 3840 × 2160
Aspect ratio 16:9 16:9 16:9
Panel LED LCD LED LCD LED LCD
Refresh rate 60 Hz 60 Hz 60 Hz
Power supply Internal Internal Internal
On the market since April 15, 2024 March 27, 2025 August 28, 2023
EPREL registration number 1829789 2219976 1575537
Guaranteed support – 7 years 5 years
Software updates – 8 years 6 years
Spare parts available – 7 years 8 years
Energy class (HDR) – – C
Power in on mode (HDR) – – 113 W

Rows where the models differ are highlighted.