800 cd/m²
High-brightness performance for demanding indoor digital signage.
The iiyama ProLite LH5566UHSB-B1AG is a 55-inch high-brightness professional digital signage display combining 4K UHD resolution, 800 cd/m² brightness, Android 14 and reliable 24/7 commercial operation.
Designed for retail, hospitality, restaurants, corporate environments and other professional installations, the LH5566UHSB-B1AG combines iiSignage², iiControl, iiShare, EShare, Signal FailOver, USB-C, Wi-Fi 5 and professional AV control in one powerful 55-inch display.

The iiyama LH5566UHSB-B1AG combines a 55-inch professional VA panel with a powerful 800 cd/m² brightness output, making it suitable for brightly illuminated indoor spaces where lower-brightness signage can lose visual impact.
Its native 3840 × 2160 4K UHD resolution, 5000:1 static contrast ratio and wide 178° viewing angles provide a strong visual platform for advertising, promotions, menus, presentations, dashboards and corporate communications.
Integrated Android 14 also allows the screen to operate as an all-in-one smart digital signage platform without necessarily requiring an external media player.

High-brightness performance for demanding indoor digital signage.
3840 × 2160 resolution across a professional 55-inch VA panel.
Strong static contrast for high-impact commercial content.
Integrated smart signage with 4GB RAM and 32GB storage.
DisplayPort Alt Mode with up to 15W Power Delivery.
Designed for continuous professional commercial use.
The 800 cd/m² panel brightness gives the LH5566UHSB-B1AG considerably more output than many standard indoor commercial signage screens.
This makes the display especially useful in brightly lit retail stores, showrooms, restaurants, reception spaces and public areas where ambient lighting can reduce the perceived impact of conventional professional screens.

The LH5566UHSB-B1AG provides native 3840 × 2160 4K UHD resolution at 60Hz.
Its 8.3-megapixel canvas provides detailed reproduction for promotional imagery, menus, dashboards, presentations, advertising and professional video content.

The LH5566UHSB-B1AG runs Android 14, providing an embedded operating platform for compatible signage applications and professional content.
Its MT9679 system-on-chip combines four A73 CPU cores with a G52 MC1 GPU, 4GB RAM and 32GB internal storage.
Integrated iiSignage² provides a content management system for publishing, scheduling and managing professional signage content remotely.
It is suitable for promotions, advertising, menu content, announcements, internal communications and other managed commercial messaging.
iiControl provides compatible device-management functionality while iiShare supports wireless presentation and screen-sharing workflows.
EShare and TeamViewer are also built into the Android environment, helping the LH5566UHSB-B1AG support both signage and collaborative business use cases.
Signal FailOver automatically monitors available input sources and can move to a prioritised backup source when the primary signal is lost.
This can help reduce blank-screen time in commercial environments where content needs to remain visible throughout the day.
The LH5566UHSB-B1AG supports both landscape and portrait orientation, allowing professional installers to adapt the screen to different content formats.
Landscape orientation is useful for widescreen advertising, presentations and menu boards, while portrait mode creates a high-impact digital poster.

USB-C adds a modern professional connection option for compatible computers and content sources.
The connection supports DisplayPort Alt Mode and up to 15W Power Delivery.

The LH5566UHSB-B1AG provides a broad set of interfaces for professional signage and commercial AV installations.

LAN, RS-232C and IR interfaces allow compatible professional control systems to communicate with the LH5566UHSB-B1AG.
Two RS-232C outputs provide additional flexibility in more complex commercial installations.

Built-in Android, Wi-Fi and professional input connectivity allow the display to work with local apps, network content, PCs and external signage players.

HDMI, USB-C, USB media playback and integrated Android provide several ways to supply and manage professional signage content.

The front of the LH5566UHSB-B1AG carries an IP5X dust-protection rating.
Combined with 24/7 operation, anti-image-retention technology and fanless construction, this helps support long-term professional deployment.

The LH5566UHSB-B1AG measures 1238.5 × 709.2 × 70mm and weighs 13.09kg without packaging.
Its 12.8mm bezels provide a clean appearance while the 55-inch size offers a popular balance between visibility and manageable installation dimensions.

The LH5566UHSB-B1AG includes the essential accessories for professional installation, including a wall mounting bracket, cables and remote control.

Browse the ScreenMoove 55-inch commercial display collection to compare other professional digital signage screens.
Technical specifications for the iiyama LH5566UHSB-B1AG 55-inch 800 cd/m² 4K UHD professional digital signage display.
| Specification | iiyama LH5566UHSB-B1AG Details |
|---|---|
| Display Characteristics | |
| Model | iiyama ProLite LH5566UHSB-B1AG |
| Design | Thin bezel |
| Diagonal | 55" / 138.7cm |
| Panel | VA, anti-glare coated glass, matte finish, haze 25% |
| Native Resolution | 3840 × 2160 @ 60Hz - 8.3 megapixels 4K UHD |
| Aspect Ratio | 16:9 |
| Panel Brightness | 800 cd/m² |
| Static Contrast | 5000:1 |
| Response Time | 6.5ms GTG |
| Viewing Zone | 178° horizontal / 178° vertical; 89° right / left; 89° up / down |
| Colour Support | 1.07 billion colours - 8-bit + FRC - NTSC 72% |
| Horizontal Sync | 57 - 62kHz |
| Viewable Area | 1209.6 × 680.4mm |
| Bezel Width | 12.8mm sides, top and bottom |
| Pixel Pitch | 0.315mm |
| Bezel Colour / Finish | Black, matte |
| Interfaces / Connectors / Controls | |
| HDMI Inputs | 2 × HDMI 2.0, maximum 3840 × 2160 @ 60Hz |
| USB-C | 1 × USB-C - DisplayPort Alt Mode, 15W Power Delivery |
| RS-232C Input | 1 × 2.5mm sub-mini jack |
| RS-232C Outputs | 2 × 2.5mm |
| RJ45 LAN | 1 |
| IR Input | 1 × 3.5mm stereo mini |
| IR Loop Through | 1 × 3.5mm |
| Audio Output | 1 × 3.5mm mini jack |
| Speakers | 2 × 10W |
| HDCP | v1.4 and v2.0 |
| USB Ports | 2 × USB 2.0 |
| Software & Hardware | |
| Operating System | Android 14 |
| Integrated Software | iiSignage², iiControl, iiShare, EShare, FailOver, TeamViewer, PDF & Media Player, iiBrowser and File Manager |
| Wi-Fi | Wi-Fi 5 - 2.4GHz / 5GHz |
| System on Chip | MT9679 |
| CPU | A73 × 4 |
| GPU | G52 MC1 |
| RAM | 4GB |
| Internal Storage | 32GB ROM |
| Professional Features | |
| Maximum Non-Stop Operating Time | 24/7 |
| Anti Image Retention | Yes |
| Media Playback | Yes |
| Water / Dust Protection | IP5X front |
| Housing / Bezel | Plastic |
| Wall Mount Included | Yes - VESA 400 × 400mm |
| General | |
| OSD Languages | EN, DE, FR, ES, IT, CN, RU, JP, CZ, NL, PL, SV, FI, DA, NB |
| Control Buttons | Power indicator, power button and remote sensor |
| Network Controls | Status, Wi-Fi, Ethernet and hotspot |
| Picture Controls | Brightness, contrast, sharpness, black level, tint, colour, noise reduction, gamma, colour temperature, colour control and picture reset |
| Audio Controls | Balance, treble, bass, volume, audio out, maximum volume, minimum volume, mute, audio-out sync, speaker setting and audio reset |
| Professional Controls | Scheduling, off timer, zoom, rotation, power-on status, RS-232 routing, IR control, power saving, source switching, HDMI CEC, screen sharing, Miracast standby and system management |
| Mechanical | |
| Orientation | Landscape and portrait |
| Fanless Design | Yes |
| VESA Mounting | 400 × 400mm |
| Operating Temperature | 0°C - 40°C |
| Storage Temperature | -10°C - 60°C |
| MTBF | 50,000 hours excluding backlight |
| Included Accessories | |
| Cables | 1.8m power cable, 1.8m HDMI cable and 1.8m RS-232C cable |
| Guides | Quick Start Guide and Safety Guide |
| Wall Mount Hardware | Wall mount bracket, wall mount guide, screws and screw anchors |
| Other | Stickers for screw holes |
| Remote Control | Yes - batteries included |
| Power Management | |
| Energy Star 8.0 POn at 230V | 92.7W |
| Power Supply Unit | Internal |
| Power Supply | AC 100 - 240V, 50/60Hz |
| Typical Power Usage | 144W |
| Standby | 0.5W |
| Off Mode | 0.3W |
| Sustainability | |
| Energy Efficiency Class | G |
| Regulations | CE, TÜV-Bauart, EAC, RoHS support, ErP, WEEE, REACH, UKCA, RoHS 2.0 and PFOS |
| REACH SVHC | Above 0.1%: Lead, Lead monoxide |
| Dimensions & Weight | |
| Product Dimensions | 1238.5 × 709.2 × 70mm |
| Box Dimensions | 1390 × 144 × 830mm |
| Pallet Volume | 12 units |
| Pallet Dimensions | 1400 × 1162 × 1660mm |
| Weight Without Box | 13.09kg |
| Weight With Box | 18.17kg |
| EAN | 4948570128228 |
The iiyama ProLite LH5566UHSB-B1AG is designed as a professional large-format digital signage display for continuous commercial use.
Supplied with the applicable professional commercial display warranty.
ScreenMoove can assist with professional mounting, cabling and commercial AV installation.
Contact ScreenMoove for product, integration, installation and digital signage support.
Download ScreenMoove-hosted documentation for the iiyama ProLite LH5566UHSB-B1AG.
Download the LH5566UHSB-B1AG technical specification PDF.
Download the English user manual for installation, configuration and operation.
Download the dimensional drawing for professional mounting and installation planning.
Download the UK energy label for the LH5566UHSB-B1AG.
Download the EU energy label for the LH5566UHSB-B1AG.
View the complete LH5566UHSB-B1AG technical specification table.
Compare the LH5566UHSB-B1AG with other professional 55-inch digital signage screens.
Speak to ScreenMoove about professional mounting, commercial AV integration and digital signage installation.
Explore detailed product views of the LH5566UHSB-B1AG, including professional connectivity, mounting and installation features.
Its combination of a 55-inch 4K VA panel, 800 cd/m² brightness, Android 14 and 24/7 operation makes the LH5566UHSB-B1AG suitable for demanding indoor digital signage and commercial AV environments.
Display high-impact promotions, advertising and product content in brightly illuminated retail environments.
Use the display for menus, promotions, guest information and venue communications.
Present dashboards, presentations and company communications using USB-C and wireless sharing.
Display campus announcements, presentations, information and wayfinding.
Create visitor information, directories and high-impact public-facing communications.
Add professional mounting, cabling and commercial AV integration.
The LH66 series offers high-brightness commercial digital signage across several screen sizes. Compare the LH5566UHSB-B1AG with other ScreenMoove models in the same range.
Browse the ScreenMoove 55-inch commercial display collection for more professional digital signage options.
The iiyama ProLite LH5566UHSB-B1AG is a 55-inch professional 4K UHD digital signage display with a VA panel, 800 cd/m² brightness, Android 14 and 24/7 operation.
The display has a rated brightness of 800 cd/m².
The display has a native 3840 × 2160 4K UHD resolution at 60Hz.
It uses a VA professional display panel with 5000:1 static contrast and wide 178° viewing angles.
Yes. It is rated for 24/7 continuous professional operation.
The display runs Android 14.
The integrated platform provides 4GB RAM and 32GB storage.
Yes. It includes Wi-Fi 5 at 2.4GHz and 5GHz.
Yes. USB-C supports DisplayPort Alt Mode and up to 15W Power Delivery.
Yes. It supports both landscape and portrait orientation.
The display uses a 400 × 400mm VESA mounting pattern, and a wall mounting kit is included.
The front of the display has an IP5X dust-protection rating.
The display measures 1238.5 × 709.2 × 70mm.
The display weighs 13.09kg without packaging and 18.17kg packaged.
ScreenMoove also offers the LH4366UHSB-B1AG 43", LH5066UHSB-B1AG 50", LH6566UHSB-B1AG 65" and LH7566UHSB-B1AG 75".
Download the LH5566UHSB-B1AG technical specification PDF directly from ScreenMoove.
The LH5566UHSB-B1AG combines a 55-inch 4K UHD VA panel, 800 cd/m² brightness, 5000:1 contrast, Android 14, iiSignage², iiControl, iiShare, USB-C, Wi-Fi 5, front IP5X protection and reliable 24/7 professional operation.
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