LG 27MK400H
- Monitors
- 27″
- Full HD
- LCD / LED
Uses 8% less energy than the average for 27-inch monitors on Wattabill (3150 models).
Running cost at a glance
- €13.13 per year
- €131 over 10 years
- 45.3 kWh per year
- 9.5 kg CO₂e per year from electricity use
Your country and usage
- Electricity at €0.2896 per kWh (household price with taxes, Eurostat 2025-S2).
- 210 g CO₂e per kWh generated in 2023 (European Environment Agency). Counts use only, not manufacturing.
We assume prices stay the same over the years.
Electricity prices in all EU countries
Same size and resolution, cheaper to run
Models on the market with the same screen size and resolution as the LG 27MK400H that use at least 5% less energy.
About this model
Text from the manufacturer, via Icecat.
Full HD Display
You’re in front of your monitor for hours on end. Make the most of your time, with an LG Full HD LED monitor. The clarity of 1080p pixel resolution is a game-changer. Simply put, everything looks more detailed than standard HD.
AMD FreeSync
With FreeSync*, gamers can experience seamless, fluid movement throughout hi-res, fast-paced games. FreeSync virtually eliminates screen tearing and stuttering.
Dynamic Action Sync
Minimize input lag with Dynamic Action Sync so you can catch every single moment in real-time.
Read more
Black Stabilizer
Keep visibility even in dark scenes. LG's Black Stabilizer senses dark scenes and helps make it brighter so that you can find the enemies hiding and waiting to attack your player in the dark.
On-Screen Control
On-Screen Control puts a host of essential monitor settings into a handy window for quick, easy access. Volume, brightness, picture mode presets, Screen Split 2.0 and Dual Controller and more can now be adjusted with just a few clicks of the mouse, instead of hard buttons on the monitor.
Wall Mountable
This monitor gives you the freedom to take it off the desk and hang it on the wall. Liberate your viewing options and save desktop space with this wall-mountable LG monitor.
Specifications
| Brand | LG |
|---|---|
| Model | 27MK400H |
| Energy class | E |
| Screen size | 27″ (68.6 cm) |
| Power in on mode (SDR) | 20.7 W |
| Standby | 0.5 W |
| Off mode | 0.3 W |
| Resolution | 1920 × 1080 |
| Aspect ratio | 16:9 |
| Panel | LED LCD |
| Refresh rate | 60 Hz |
| Power supply | External |
| Guaranteed support | 8 years |
| Software updates | 8 years |
| Spare parts available | 8 years |
| On the market since | February 26, 2021 |
| EPREL registration number | 356114 |
Source: EPREL, European Commission. Data updated October 13, 2026.
Product description and images: Icecat (Open Icecat), provided as is, without warranty.