Dahua LS550KDM-UF 55-inch UHD Video Wall Display Unit

Name: Dahua LS550KDM-UF 55-inch UHD Video Wall Display Unit
Brand: Dahua
SKU: dahua-ls550kdm-uf
Availability: InStock

Overview

The Dahua LS550KDM-UF is a 55-inch UHD display built as a tile for video walls, with a 1.7mm panel-to-panel bezel, an industrial ADS LCD rated for continuous operation and 3840×2160 resolution. It accepts 4K@60Hz input over DisplayPort or HDMI 1 and passes the signal to the next tile over DisplayPort OUT. Control rooms, surveillance centres and meeting rooms in Doha and Lusail are typical settings. Request a quote from SmartRooms Qatar to plan your wall.

What the LS550KDM-UF is built for

The Dahua LS550KDM-UF is a 55-inch UHD display designed to be one tile in a larger video wall. Its 1.7mm bezel-to-bezel gap keeps the joins between panels narrow, while the 3840×2160 resolution gives each tile sharp detail at close viewing distances. It suits control rooms, surveillance centres, command centres and meeting rooms where screens run for long hours.

Panel and image facts that matter

Panel: industrial ADS LCD with direct LED backlight, rated for continuous operation.
Brightness and contrast: 500 cd/m² and 1,200:1.
Surface: anti-glare treatment with 25% haze and 3H hardness, useful near windows and bright lobbies.
Viewing angle: 178° horizontal and vertical.
Calibration and processing: factory calibration for colour uniformity across tiles, built-in 3D noise reduction and a picture splicing function.
Reliability: MTBF rated at 50,000 hours.

Connectivity for a multi-screen wall

Inputs include VGA, DVI-D, two HDMI ports, one DisplayPort, RS232 and audio. Up to 4K@60Hz can be received through DP IN or HDMI 1. The DP OUT port passes up to 4K@30Hz to the next unit, which lets several tiles be chained from one source. Control is possible by infrared remote or RS232 in dual mode, including remote control by computer, so one controller can manage the whole wall from a control desk.

Where it fits in Qatar

In Msheireb or West Bay, a security operations room might use a 3×3 wall of these units to monitor cameras across a building, and the 24/7 rating matters because the wall rarely powers down. An energy or industrial company in Mesaieed or Ras Laffan could run a plant monitoring wall in a control room. A university in Education City or a government authority in Doha might use the units in a boardroom or meeting room where a single screen also serves as part of a larger display. Qatar summers raise temperatures inside enclosed spaces, so check the ventilation of any cabinet: the unit is rated for ambient temperatures from 0 to 50°C.

What to plan before ordering

Power: supply rated AC 100V to 240V at 50/60Hz, with typical draw of 180W and maximum of 200W per unit.
Mounting: floor-standing or wall-mounted, VESA 600×400mm with M6 fixings. Net weight 24.5kg, gross weight 34.3kg.
Dimensions: 1211.3mm × 682.1mm × 121.7mm per unit, so measure the wall or stand before ordering.
Environment: operating range 0 to 50°C and 10% to 80% humidity, non-condensing.
Energy: standby consumption below 0.5W and EU energy class G.

SmartRooms Qatar offers a free site survey before wall-mounting, delivery to all eight municipalities of Qatar and professional installation. Purchase orders (LPOs) and government tenders, including Monaqasat, are supported, and payment can be made by bank transfer, cheque or purchase order. Request a quote for your LS550KDM-UF wall and our team will respond, usually within one working day.

Highlights

1.7mm panel-to-panel bezel for tight multi-screen walls
Industrial ADS LCD rated for 24/7 operation
4K@60Hz input via DisplayPort IN or HDMI 1
DP OUT daisy-chains up to 4K@30Hz to the next unit
Infrared and RS232 control, including computer control
Floor-standing or wall-mounted, VESA 600×400mm M6

Plan your video wall

Rows3

Columns3

Wall size about 3.65 × 2.05 m · 9 panels

Estimated timeline

Quotation within 1 working day · delivery timing depends on stock availability, and we confirm it with your quotation.

Specifications

30 specifications · Source: manufacturer · checked Oct 2026

Model1

Model: DHI- LS 5 50K DM - UF

Display14

Diagonal Size: 55"(16:9)
Panel Type: ADS
Resolution: 3840×2160 (UHD)
Bezel Width: B2B: 1.7mm (Panel Bezel to Panel Bezel), 0.9mm (T/L), 0.8mm (B/R) A2A: 2.45mm (Active area to Active area), 1.5mm (T/L), 0.95mm (B/R)
Backlight: Direct LED
Brightness: 500 cd/ m²
Contrast Ratio: 1200:1
Pixel Density: 80dpi
Viewing Angle: H178°, V178°
Response Time (G-to-G): 8ms
Color Depth: 1.07G (8bits+FRC)
Color Temperature: 10,000K
Surface Treatment: Haze 25%, 3H
MTBF: 50,000h

Signals2

Input: VGA(D-Sub)×1, DVI-D×1, HDMI×2, DP×1, RS232×1, Audio×1, IR×1
Output: DP×1, RS232×1, Audio×1

General13

Power Supply: AC100V ～ AC240V, 50/60 Hz
Power Consumption (Typical): 180W
Power Consumption (Max.): 200W
Energy Efficiency Class (EU): G
Installation Mode: Floor-standing, wall-mounted
VESA: 600×400mm, M6
Control Mode: Infrared, RS232 dual mode, supporting remote control by computer
Gross Weight: 34.3kg (75.6Ib)
Net Weight: 24.5kg (54.0Ib)
Product Dimension (W×H×D): 1211.3mm×682.1mm×121.7mm (47.7"×26.9"×4.8")
Package Dimension (W×H×D): 1360mm×945mm×280mm (53.5"×37.2"×11.0")
Operating Environment: Temperature 0 ℃ ~+50 ℃
Humidity: 10%RH~80%RH (non-condensing)

Downloads

5 files from the manufacturer

PDF Datasheets LS550KDM-UF_Datasheet_2024.9.pdf 673 KB PDF Manuals & guides Dahua LCD Display Wall Unit_Quick Start Guide_V1.0.5.pdf 2.1 MB PDF Manuals & guides LS550KDM-UF_INSTALLATION_METHOD_EN.pdf 818 KB PDF Drawings & CAD LS550KDM-UF_DIMENSIONS.pdf 588 KB DOCX Other documents LS550KDM-UF_A&E_20260902011830.docx 40 KB

Questions about LS550KDM-UF

What is the Dahua LS550KDM-UF designed for?

It is a 55-inch UHD display built as one tile in a video wall, for control rooms, surveillance centres, command centres and meeting rooms. The 1.7mm panel-to-panel bezel keeps joins between tiles narrow, and the 3840×2160 resolution gives each tile sharp detail at close viewing distances. It can also run as a standalone commercial display, but its feature set is aimed at multi-screen walls.

Can it run 24 hours a day?

Yes. The panel is an industrial-level ADS LCD rated for continuous 24/7 operation, and its MTBF is stated at 50,000 hours. That suits a security operations room in Msheireb or a plant monitoring wall in Mesaieed where screens stay on overnight. Ask the SmartRooms Qatar team to confirm ventilation for any sealed cabinet, since the unit is rated for 0 to 50°C ambient.

How narrow are the bezels between tiles?

The panel-to-panel gap (B2B) is 1.7mm, with 0.9mm on the top and left edges and 0.8mm on the bottom and right. The active-area gap (A2A) is 2.45mm, measured between picture areas when panels sit side by side. Narrower gaps make a 3×3 wall look like one connected display rather than a grid of separate screens, which matters in command and presentation rooms.

What resolution and input formats does it accept?

The resolution is 3840×2160 (UHD). Up to 4K@60Hz can be fed in through DP IN or HDMI 1. Other inputs are VGA, DVI-D, a second HDMI port, audio and infrared. Check your PC or media player output before ordering to confirm it sends 4K@60Hz through one of those two ports, because the other inputs will not carry that rate.

Can several units be daisy-chained from one source?

Yes. The DP OUT port passes the signal to the next unit at up to 4K@30Hz, and that output limit should be planned in advance. In a 3×3 wall fed from one computer in a Doha control room, the chain order and cabling need to be set before installation. SmartRooms Qatar can review the chain and controller setup during the site survey.

How is the display controlled?

It supports infrared remote control and RS232 in dual mode, and it can be controlled by computer over RS232. An IT team in a university media room in Education City could run the wall from a desk controller, while the infrared remote handles day-to-day adjustments on individual units. Confirm that your controller is compatible with the RS232 control before ordering.

Will it work on Qatar's 240V mains power?

The power supply is rated AC 100V to 240V at 50/60Hz, which covers Qatar's 240V, 50Hz supply. Typical consumption is 180W, maximum is 200W, and standby is below 0.5W. The data does not state the plug type of the power cord, so confirm that the supplied cord fits BS 1363 sockets before installation, and plan the electrical load for the whole wall rather than one unit.

Can it be wall-mounted or floor-standing?

Both. The unit supports floor-standing and wall-mounted installation with a VESA pattern of 600×400mm and M6 fixings. Net weight is 24.5kg and gross weight in packing is 34.3kg. For a hotel lobby in West Bay, arrange a free site survey first to check the wall structure, mounting height and tile alignment before fixing several units.

How much wall space does one unit need?

Each unit measures 1211.3mm wide, 682.1mm high and 121.7mm deep. Three units side by side span about 3.6 metres before any frame, so a 3×3 wall of these displays needs roughly 3.6 by 2.1 metres of clear space. Measure the wall and check the depth against any cabinet or false ceiling before ordering.

Will it cope with sunlight from windows?

The screen has an anti-glare surface with 25% haze and 3H hardness, and it is rated at 500 cd/m² brightness. That helps in lobbies and atriums with glass frontages, where reflections are a common problem. Direct sunlight on the screen still reduces contrast, so place the wall away from direct sun where possible and test the viewing position during the site survey.

Is it a better choice than a standard 55-inch display for a meeting room?

For a single presentation screen, a standard commercial display may be enough. This unit suits a meeting room that may join a video wall later or act as a command display, because it offers a 1.7mm bezel, DP daisy-chaining and RS232 control. Compare its specification with your current screen, then request a quote for the setup that suits a boardroom at a government authority in Doha.

How do I order and what happens next?

Request a quote from SmartRooms Qatar, and quotations are usually sent within one working day. We supply to all eight municipalities of Qatar, with professional installation available. Purchase orders (LPOs) and government tenders, including Monaqasat, are accepted, and payment can be made by bank transfer, cheque or purchase order. Products are covered by the manufacturer's warranty.