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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 SUP-8500 €164.36
  • Leaderhub L86HM €79.57
  • Dahua DHI-LDH86-SAI400L €80.63
Model Legamaster SUP-8500 Leaderhub L86HM Dahua DHI-LDH86-SAI400L
Running cost
Running cost (per year) €164.36 €79.57 €80.63
over 10 years €1,644 +€848 over 10 years €796 €806 +€11 over 10 years
kWh per year 580 281 285
kg CO₂e per year from electricity use 122 59 60
Specifications
Brand Legamaster Leaderhub Dahua
Model SUP-8500 L86HM DHI-LDH86-SAI400L
Energy class D E E
Screen size 85″ (216 cm) 85″ (217.4 cm) 85″ (215.9 cm)
Power in on mode (SDR) 265 W 128.3 W 130 W
Energy class (HDR) D – –
Power in on mode (HDR) 265 W – –
Standby 0.5 W 0.3 W 0.4 W
Networked standby 0.5 W 0 W –
Off mode 0 W 0 W 0.4 W
Resolution 3840 × 2160 3840 × 2160 3840 × 2160
Aspect ratio 16:9 16:9 16:9
Panel LED LCD LCD LCD
Refresh rate 60 Hz 60 Hz 60 Hz
Power supply Internal Internal Internal
On the market since May 3, 2021 February 12, 2026 July 14, 2026
EPREL registration number 558007 2629274 2789144
Guaranteed support – 10 years 15 years
Software updates – 10 years 8 years
Spare parts available – 10 years 7 years

Rows where the models differ are highlighted.