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4 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.
  • Kpkue

    X90K
    A 19″Full HDLCD / LED

    €4.65 per year

    +€1.61 a year

  • Cheapest to run

    VisionOwl

    Y185LS
    A 19″Full HDLCD / LED100 Hz

    €3.04 per year

  • Shenzhen dusun

    N37,N38,N39,N40,N41,N42
    A 19″Full HDLCD / LED120 Hz

    €3.10 per year

    +€0.06 a year

  • Shenzhen Fanyue

    NC185B
    B 19″Full HD120 Hz

    €3.35 per year

    +€0.31 a year

Yearly running cost

Bars in proportion to the energy each model uses.

  • Kpkue X90K €4.65
  • VisionOwl Y185LS €3.04
  • Shenzhen dusun N37,N38,N39,N40,N41,N42 €3.10
  • Shenzhen Fanyue NC185B €3.35
Model Kpkue X90K VisionOwl Y185LS Shenzhen dusun N37,N38,N39,N40,N41,N42 Shenzhen Fanyue NC185B
Running cost
Running cost (per year) €4.65 €3.04 €3.10 €3.35
over 10 years €47 +€16 over 10 years €30 €31 +€1 over 10 years €33 +€3 over 10 years
kWh per year 16.4 10.7 11 11.8
kg CO₂e per year from electricity use 3.4 2.3 2.3 2.5
Specifications
Brand Kpkue VisionOwl Shenzhen dusun Shenzhen Fanyue
Model X90K Y185LS N37,N38,N39,N40,N41,N42 NC185B
Energy class A A A B
Screen size 19″ (46.9 cm) 19″ (47 cm) 19″ (47 cm) 19″ (47 cm)
Power in on mode (SDR) 7.5 W 4.9 W 5 W 5.4 W
Standby 0.4 W 0.2 W 0.3 W 0.2 W
Networked standby 0 W – 0 W 0 W
Off mode 0.7 W 0.2 W 0.1 W 0.2 W
Resolution 1920 × 1080 1920 × 1080 1920 × 1080 1920 × 1080
Aspect ratio 16:9 16:9 16:9 16:9
Panel LED LCD LED LCD LCD IPS
Refresh rate 60 Hz 100 Hz 120 Hz 120 Hz
Power supply External External External Internal
Guaranteed support 1 year – 1 year –
Software updates 2 years – 1 year –
Spare parts available 2 years – 1 year –
On the market since September 3, 2026 December 20, 2025 December 22, 2025 January 9, 2026
EPREL registration number 2838751 2580342 2580726 2592473
Energy class (HDR) – A – B
Power in on mode (HDR) – 4.9 W – 6.5 W

Rows where the models differ are highlighted.