27" LG UltraGear 27G550B-B
27" LG UltraGear 27G550B-B
The LG UltraGear 27G550B-B gaming monitor is designed for fast-paced competitive gaming where every frame and instant reaction matters. It offers a 27" IPS panel with Full HD resolution, a refresh rate of up to 300Hz, and a 1ms GtG response time. NVIDIA G-SYNC Compatible and AMD FreeSync Premium technologies help reduce screen tearing and stuttering, while HDR10 support and 99% sRGB coverage contribute to vivid and accurate colour reproduction. The feature set is complemented by practical gaming functions like Dynamic Action Sync, Black Stabilizer, Crosshair, and FPS Counter, the LG Switch application, and an ergonomic stand with height, tilt, swivel, and pivot adjustments.
27"
Screen Size
1920 × 1080 (Full HD)
Resolution (Resolution Type)
IPS panel
Display Type
300 Hz
Refresh Rate
1 ms (GtG)
Response Time
Key Features of the LG UltraGear 27G550B-B Monitor
- 27" IPS display with Full HD resolution of 1920 × 1080 pixels
- Refresh rate up to 300Hz
- 1ms GtG response time in Faster mode
- HDR10 and HDR Effect
- Typical coverage of 99% sRGB colour space
- Displays 16.7 million colours
- NVIDIA G-SYNC Compatible
- AMD FreeSync Premium and VRR support
- Dynamic Action Sync to reduce input lag
- Black Stabilizer for better visibility in dark scenes
- Crosshair with a target point in the centre of the screen
- FPS Counter to display the frame rate
- LG Switch application with 11 screen split layouts
- Dual Mode and Personalized Picture Wizard
- Three-sided virtually borderless design
- Height, tilt, swivel and pivot adjustment
- VESA mount 100 × 100mm
- Flicker Safe and Reader Mode
- 2× HDMI 2.0, DisplayPort 1.4 and headphone output
300Hz refresh rate for perfectly smooth action
A refresh rate of up to 300Hz allows the monitor to display exceptionally smooth motion and significantly reduces blurring in fast-paced game scenes. This makes it easier to catch sharp changes in direction, fast-moving opponents and details that might be lost at lower frequencies. The LG UltraGear 27G550B-B provides the necessary fluidity, especially for racing games, shooters and other competitive titles. Achieving the maximum frequency also depends on your computer's performance, the interface you choose and your game settings.
1ms GtG response time for fast gaming reactions
The 1ms GtG response time in Faster mode helps to reduce unwanted trails behind moving objects and inverse ghosting. Individual frames alternate faster and the image stays sharper during sharp camera movements or rapid scene changes. The short response time supports more precise reactions and smoother dynamic gameplay.
Smooth picture with NVIDIA G-SYNC and AMD FreeSync Premium
NVIDIA G-SYNC Compatible and AMD FreeSync Premium technologies synchronise the monitor's refresh rate with the frame rate of a compatible graphics card. They help reduce screen tearing, stuttering, blurring and other distracting effects when the frame rate fluctuates. The result is a more consistent and smoother picture that better immerses you in the game. The monitor also supports Variable Refresh Rate (VRR).
IPS panel with HDR10 and a wide colour spectrum
The IPS panel offers wide viewing angles of 178° horizontally and vertically and helps to maintain consistent colour reproduction when viewed from different positions. Typical coverage of 99% of the sRGB space allows for a wide range of shades to be displayed and supports a more faithful rendering of the game environment. HDR10 technology expands the possibilities of working with colour and brightness to make dramatic scenes more impressive and natural. The monitor can display 16.7 million colours.
LG Switch – convenient monitor settings from your computer
The LG Switch application allows you to adjust image quality, brightness and other settings directly from your computer and quickly activate the selected values using a keyboard shortcut. It also offers Dual Mode, a Personalized Picture Wizard function, and the ability to split your desktop into 11 different layouts. You can launch a video call with a single click via the app, so you can easily adapt the monitor for gaming, work and communication. The app needs to be downloaded from the LG website.
Dynamic Action Sync – faster response to in-game action
Dynamic Action Sync helps reduce the input lag between your command and its display on the monitor. A mouse movement, button press, or other action can thus be reflected more quickly. In competitive gaming, it allows you to react more promptly at key moments.
Black Stabilizer – more detail in dark scenes
Black Stabilizer brightens darker parts of the image and improves the visibility of details hidden in the shadows. This allows you to better distinguish opponents, obstacles or objects in dark rooms and during rapid changes in lighting. The function gives you a clearer picture without having to significantly brighten the entire scene.
Crosshair – a target point in the centre of the screen
The Crosshair function places a fixed aiming point directly in the centre of the screen. This helps to make aiming easier in shooters, especially in situations where the game does not display its own crosshair or it is not very prominent. More precise orientation in the centre of the screen can help you target an opponent faster.
FPS Counter – keep an eye on your current frame rate
The FPS Counter displays the current frames per second directly on the screen. This makes it easy to check how smoothly the game is running and how changes in graphics settings affect your computer's performance. You have the frame rate data available in real time without having to use another overlay application.
Ergonomic stand and virtually borderless design
The three-sided, virtually borderless design focuses attention on the image and makes it easy to set up a multi-monitor workstation. The space-saving L-shaped stand reduces unused space on your desk while offering a wide range of adjustment options. You can adjust the position of the monitor by changing the height, tilting, swivelling to the sides and rotating it 90° using the pivot function. A VESA 100 × 100mm mount is also available.
Wide range of connectivity options
The LG UltraGear 27G550B-B monitor offers two HDMI 2.0 inputs and one DisplayPort 1.4 for connecting a desktop computer, laptop or games console. The equipment is complemented by a three-pole 3.5mm output for transferring sound to headphones or external speakers. A DisplayPort cable is included for easy connection to a compatible device.
Technical Specifications of the Monitor
- Screen size: 27" / 68.4cm
- Resolution: 1920 × 1080 pixels
- Panel type: IPS
- Aspect ratio: 16:9
- Refresh rate: up to 300Hz
- Response time: 1ms GtG in Faster mode
- Typical brightness: 300cd/m²
- Minimum brightness: 240cd/m²
- Typical contrast ratio: 1,000:1
- Minimum contrast ratio: 700:1
- Typical colour coverage: 99% sRGB
- Minimum colour coverage: 95% sRGB
- Number of colours: 16.7 million
- Viewing angles: 178° horizontal and vertical
- Pixel pitch: 0.3108 × 0.3108mm
- HDR: HDR10, HDR Effect
- Synchronisation: NVIDIA G-SYNC Compatible, AMD FreeSync Premium, VRR
- Stand adjustment: height, tilt, swivel, pivot
- VESA mount: 100 × 100mm
- Dimensions with stand: 614.1 × 534.4 × 220mm
- Dimensions without stand: 614.1 × 358.8 × 49.1mm
- Weight with stand: 5.5kg
- Weight without stand: 3.2kg
- Power supply: external adapter
- Power consumption in sleep mode: less than 0.5W
- Power consumption when off: less than 0.3W
Interface
- 2× HDMI 2.0
- 1× DisplayPort 1.4
- 1× 3-pole 3.5mm headphone output
Colour Gamut
Determines how accurately the monitor can display colours. sRGB is ideal for web, films or games. DCI-P3/Adobe RGB is appreciated by graphic designers or professionals at work. The higher the value, the better the monitor displays colours. Maximum Brightness
Given in nits or cd/m², this value determines the monitor's brightness level. Brightness above 400 nits is key for HDR content and readability in sunlight, while standard office monitors are fine with values above 250. Refresh rate and response time
The refresh rate (Hz) determines the number of frames displayed per second, so the higher the value, the smoother the picture and the less eye strain. A lower response time value (ms) eliminates motion blur. 144Hz+ is ideal for gaming, while values around 75Hz are suitable for office monitors.Specifications
Display diagonal and resolution
Construction
Panel and screen technology
Aspect Ratio
Backlight and colour
Connection
Colour gamut
Features and functions
Colour
Dimensions and weight
Packaging
Power outlet type
Energy specifications
| Code: | WK060a1t7g6 |
| Warranty: | 24 months |
| Links: | Producer's Website: |
| Manufacturer information |
LG electronics INC. Alfred-Herrhausen-Allee 3-5, 65760 Eschborn, Germany, [email protected], +49 6196 7883000 
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