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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.

  • Sharp DD-E224F €7.44
  • SKitphrati HD-215 €4.34
  • Shenzhen Kenowa HD-215 €6.39
Model Sharp DD-E224F SKitphrati HD-215 Shenzhen Kenowa HD-215
Running cost
Running cost (per year) €7.44 €4.34 €6.39
over 10 years €74 +€31 over 10 years €43 €64 +€20 over 10 years
kWh per year 26.3 15.3 22.6
kg CO₂e per year from electricity use 5.5 3.2 4.7
Specifications
Brand Sharp SKitphrati Shenzhen Kenowa
Model DD-E224F HD-215 HD-215
Energy class D D C
Screen size 21″ (54.5 cm) 21″ (55 cm) 21″ (54.6 cm)
Power in on mode (SDR) 12 W 7 W 10.3 W
Standby 0.2 W 0.5 W 0.4 W
Off mode 0.2 W 0.3 W 0.2 W
Resolution 1920 × 1080 1920 × 1080 1920 × 1080
Aspect ratio 16:9 16:9 16:9
Panel LCD LCD LCD
Refresh rate 60 Hz 60 Hz 60 Hz
Power supply Internal Internal External
Guaranteed support 8 years 5 years 1 year
Software updates 8 years 5 years 1 year
Spare parts available 7 years 5 years 1 year
On the market since November 6, 2025 July 14, 2025 July 18, 2024
EPREL registration number 2293403 2415190 2083504
Energy class (HDR) – D –
Power in on mode (HDR) – 7 W –
Networked standby – 0 W –

Rows where the models differ are highlighted.