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iiyama Prolite LH5565UHSB-B1 55" specifications and in-depth review

iiyama Prolite LH5565UHSB-B1 55"

Manufacturer: iiyama

The iiyama ProLite LH5565UHSB-B1 is a large-format 54.6-inch IPS display built for commercial and professional installation use, combining a 3840 x 2160 UHD resolution with wide 178-degree viewing angles on both axes. The glossy panel and 800 nits typical brightness make it well suited to environments where image vibrancy and visibility at a distance are priorities. VESA mount support and portrait mode capability give installers considerable flexibility in how and where the screen is deployed.

Connectivity is handled through two HDMI 2.0 ports, a DisplayPort 1.2 output, two USB ports, a 3.5 mm audio jack, and both Ethernet and Wi-Fi 5 (802.11ac) for wired or wireless network integration. The built-in stereo speakers deliver 2 x 10W of audio output, and the display renders up to 1.07 billion colors at an 8-bit depth with a contrast ratio of 1200:1. Operating power consumption sits at 78W, with standby drawing just 0.5W, and the monitor carries an EU energy label of E.

Pros
  • UHD 3840x2160 resolution on a 54.6-inch panel provides noticeably more detail than Full HD at this screen size
  • 800 nits typical brightness makes the display well-suited to bright or high-ambient-light environments
  • 1.07 billion color reproduction at 8-bit depth supports a wide and nuanced color range for display applications
  • Built-in Wi-Fi 5 and Ethernet allow flexible network integration without additional hardware
  • VESA mount support combined with portrait mode capability gives installers a range of deployment options
  • Built-in stereo speakers at 2 x 10W reduce the need for separate audio equipment in basic setups
Cons
  • The glossy panel without any anti-glare coating makes the screen prone to reflections in lit environments
  • No adaptive synchronization support can result in visible screen tearing during motion-heavy content
  • Swivel adjustment is not available, limiting horizontal repositioning once the display is installed
  • USB Type-C is absent, restricting compatibility with modern source devices that rely on this connection
  • Color calibration is not supported, which limits usefulness in any workflow requiring precise color accuracy
  • The EU energy label of E indicates relatively high energy consumption for continuous or commercial use
Who is this for?

This monitor is well matched to large-format commercial display and digital signage installations where UHD resolution and high brightness are needed to deliver sharp, vivid visuals to viewers at varying distances. The 800 nits luminance and wide 178-degree viewing angles ensure the image remains clear and consistent across a broad area, making it a practical fit for lobbies, showrooms, or public information displays. Built-in Wi-Fi and Ethernet connectivity further support networked deployment scenarios where remote content management or streaming is required, while VESA mount support and portrait mode add flexibility for different installation orientations.

Who is this NOT for?

The glossy panel with no anti-glare coating makes this monitor a poor choice for brightly lit office or home environments, where reflections can significantly interfere with screen visibility. Users looking for a display for fast-paced gaming or motion-sensitive applications will find the 60Hz refresh rate and lack of adaptive synchronization inadequate for a smooth experience. Additionally, creative professionals who require precise color output will be limited by the absence of color calibration support, making this display unsuitable for color-critical workflows.

Display:

Display type IPS, LCD, LED-backlit
response time 8 ms
screen size 54.6"
resolution 3840 x 2160 px
pixel density 80 ppi
Adaptive synchronization None
has anti-glare coating ✕
refresh rate 60Hz
maximum horizontal viewing angle 178º
maximum vertical viewing angle 178º
has a matte panel ✕
has a glossy panel ✓
has a touch screen ✕

The panel uses IPS LCD technology with LED backlighting across a 54.6-inch screen, delivering a 3840 x 2160 px resolution at a pixel density of 80 ppi. Both horizontal and vertical viewing angles reach 178 degrees, and the display runs at a 60Hz refresh rate with an 8ms response time. The panel has a glossy finish and does not feature a matte surface, anti-glare coating, or touch screen functionality, and no adaptive synchronization technology is supported.

General info:

Type Standard
EU energy label E
supports total tilt ✓
Has a swivel stand ✕
Supports VESA mount ✓
height 710 mm
width 1237 mm
thickness 55 mm
weight 14600 g
supports portrait mode ✓
maximum operating temperature 40 °C
lowest potential operating temperature 0 °C
volume 48304.85 cm³

This is a standard-type monitor with a substantial footprint, measuring 1237 mm wide, 710 mm tall, and 55 mm thick, with a weight of 14600 g. It supports VESA mounting and portrait mode, and the stand allows for tilt adjustment, though swivel is not available. The monitor carries an EU energy label of E and operates within a temperature range of 0 °C to 40 °C.

Colors:

brightness (typical) 800 nits
supports color calibration ✕
display colors 1070 million
bit depth 8-bit
contrast ratio 1200:1

The display is capable of rendering 1.07 billion colors at an 8-bit depth, with a typical brightness of 800 nits and a contrast ratio of 1200:1. Color calibration is not supported on this monitor.

Connectivity:

HDMI ports 2
supports Thunderbolt ✕
DisplayPort outputs 1
DisplayPort version DisplayPort 1.2
has a socket for a 3.5 mm audio jack ✓
has a DVI connector ✕
USB ports 2
Has USB Type-C ✕
HDMI version HDMI 2.0
supports Ethernet ✓
supports Wi-Fi ✓
Wi-Fi version Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n)
has AirPlay ✕
mini DisplayPort outputs 0
has a VGA connector ✕

Video input options include two HDMI 2.0 ports and one DisplayPort 1.2 output, while DVI, VGA, mini DisplayPort, and Thunderbolt are not available. For networking, the monitor supports both Ethernet and Wi-Fi, covering Wi-Fi 5 (802.11ac) and Wi-Fi 4 (802.11n). Additional connections include two USB ports and a 3.5 mm audio jack, though USB Type-C and AirPlay are not supported.

Power:

operating power consumption 78W
standby power consumption 0.5W

The monitor consumes 78W during normal operation, while standby power draw drops to a low 0.5W.

Features:

has PiP ✕
has stereo speakers ✓
has built-in smart TV ✕
audio output power 2 x 10W
has a remote control ✕
supports Dolby Digital ✕
supports Dolby Digital Plus ✕
has DTS Surround ✕
has an ambient light sensor ✕
has a front camera ✕

The monitor includes built-in stereo speakers rated at 2 x 10W, providing onboard audio without requiring external equipment. It does not support Dolby Digital, Dolby Digital Plus, or DTS Surround, and there is no remote control, ambient light sensor, front camera, or PiP functionality. Smart TV capabilities are also absent.

Final Verdict

The iiyama ProLite LH5565UHSB-B1 is a large-format commercial display that makes its strongest case in networked signage and public-facing installation environments, where its 3840x2160 UHD resolution combined with 800 nits brightness delivers sharp, visible imagery across wide viewing distances. Built-in Wi-Fi, Ethernet, and flexible mounting options reinforce its suitability for managed deployment scenarios. That said, the glossy panel, absence of color calibration, and lack of adaptive sync mean it is not built for reflective spaces, gaming, or precision creative work. For the right commercial context, the LH5565UHSB-B1 presents a coherent and capable specification — provided its environmental and use-case fit is carefully considered before deployment.