Compare models
2 monitors side by side.
- 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.
Electricity prices in all EU countries
- Cheapest to run
- Add a model Use the Compare buttons on any of the monitors.
Yearly running cost
Bars in proportion to the energy each model uses.
- LG 19M38A €9.18
- LG 20MK400H €7.07
| Model | LG 19M38A | LG 20MK400H |
|---|---|---|
| Running cost | ||
| Running cost (per year) | €9.18 | €7.07 |
| over 10 years | €92 +€21 over 10 years | €71 |
| kWh per year | 32.4 | 25 |
| kg CO₂e per year from electricity use | 6.8 | 5.2 |
| Specifications | ||
| Brand | LG | LG |
| Model | 19M38A | 20MK400H |
| Energy class | F | D |
| Screen size | 19″ (47 cm) | 19″ (49.4 cm) |
| Power in on mode (SDR) | 14.8 W | 11.4 W |
| Standby | 0.5 W | 0.5 W |
| Off mode | 0.3 W | 0.3 W |
| Resolution | 1366 × 768 | 1366 × 768 |
| Aspect ratio | 16:9 | 16:9 |
| Panel | LED LCD | LED LCD |
| Refresh rate | 60 Hz | 60 Hz |
| Power supply | External | External |
| Guaranteed support | 8 years | 8 years |
| Software updates | 8 years | 8 years |
| Spare parts available | 8 years | 8 years |
| On the market since | February 26, 2021 | February 26, 2021 |
| EPREL registration number | 356191 | 356179 |
Rows where the models differ are highlighted.