LG 24U421A
Uses less electricity than 74% of the 4,819 monitors, 24–31″ on the EU register. At your selected price (European Union) that is €7 a year, €71 over ten years.
- Power, SDR
- 17.2 W
- Typical 21 W
- Running cost
- €7 / year
- 4 h a day
- Power, HDR
- 21.6 W
- 1.3× SDR
Near the middle of its group: 16 % below the typical 30 kWh. Class E is the most common class in this group (49% of models). In HDR it draws 21.6 W, 1.3 times its SDR power. LG has 335 models in this group; this one is number 53 among them.
Where it stands
Rank 1,199 of 4,819 monitors, 24–31″ by yearly consumption. 1,198 use less.
Next to it in the ranking
- Atech ATS-240 25 kWh same
- Acer KG251Q X0 25 kWh same
- LG 24U421A 25 kWh
- Ilectry IYVISION23620C 25 kWh same
- iiyama T2755QSC-B1 25 kWh same
What it will cost you
| Period | 24U421A | WF238V | Difference |
|---|---|---|---|
| 1 year | €7 | €2 | −€5 |
| 5 years | €36 | €8 | −€27 |
| 10 years | €71 | €16 | −€55 |
| 15 years | €107 | €25 | −€82 |
Is the more efficient model worth its price?
Enter both purchase prices to see the total cost of ownership.
Power in SDR and HDR
Cost by viewing time
| Use | kWh / yr | € / yr |
|---|---|---|
| 2 hours a day | 13 | €4 |
| 4 hours a day | 25 | €7 |
| 8 hours a day | 50 | €14 |
Same size, lower running cost
On sale, at least 10% less energy, same size group
| Model | kWh / yr | Saves / year |
|---|---|---|
| LG 24U421A (this model) | 25 | — |
| 6 | €5 | |
| 7 | €5 | |
| 7 | €5 | |
| 7 | €5 | |
| 7 | €5 |
Label and product sheet
- Energy class SDR / HDR
- E / F
- On-mode power SDR
- 17.2 W
- On-mode power HDR
- 21.6 W
- Standby / networked standby
- 0.5 W
- Screen diagonal
- 24″
- Resolution
- 1920×1080
- Panel
- LED LCD
- Refresh rate
- 60 Hz
- Software updates (minimum)
- 8 years
- Guarantee (supplier)
- 1 years
- Spare parts (minimum)
- 8 years
Model numbers and history
Registered by LG under one model number.
24U421A
- First published in the EU register (EPREL)
- Placed on the EU market
Questions
How much does the LG 24U421A cost to run?
At 4 hours a day it uses about 25 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €7 a year, or €71 over ten years.
Does HDR use more electricity?
Yes. In HDR mode this screen draws 21.6 W instead of 17.2 W, 1.3 times as much. The yearly cost on this page uses SDR, as the label does.