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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.

  • Shenzhen E-Tech Digital S1 €3.35
  • ASUS MB14AC €3.10
  • Mt-Viki MT-LMP4 €1.86
Model Shenzhen E-Tech Digital S1 ASUS MB14AC Mt-Viki MT-LMP4
Running cost
Running cost (per year) €3.35 €3.10 €1.86
over 10 years €33 +€15 over 10 years €31 +€12 over 10 years €19
kWh per year 11.8 11 6.6
kg CO₂e per year from electricity use 2.5 2.3 1.4
Specifications
Brand Shenzhen E-Tech Digital ASUS Mt-Viki
Model S1 MB14AC MT-LMP4
Energy class D B A
Screen size 14″ (35.4 cm) 14″ (35.6 cm) 14″ (35.5 cm)
Power in on mode (SDR) 5.4 W 5 W 3 W
Standby 0.2 W 0.3 W 0.2 W
Networked standby 0 W – 0 W
Off mode 0.2 W 0.3 W 0.1 W
Resolution 1920 × 1080 1920 × 1080 1920 × 1080
Aspect ratio 16:9 16:9 16:9
Panel LCD LCD LED LCD
Refresh rate 50 Hz 60 Hz 60 Hz
Power supply External Internal Internal
Guaranteed support 3 years 7 years 3 years
Software updates 3 years 8 years 5 years
Spare parts available 3 years 7 years 3 years
On the market since April 2, 2026 May 19, 2020 May 27, 2026
EPREL registration number 2681631 419756 2741032
Energy class (HDR) – – A
Power in on mode (HDR) – – 3 W

Rows where the models differ are highlighted.