Dahua LS550UEH-EF · Price in Qatar

Name: Dahua LS550UEH-EF 55-inch FHD Video Wall Display Unit with 0.88mm Bezel
Brand: Dahua
SKU: dahua-ls550ueh-ef
Availability: InStock

Overview

The Dahua LS550UEH-EF is a 55-inch Full HD video wall display unit built on an ADS panel for continuous operation. Its 0.88mm bezel-to-bezel design keeps seams narrow when panels are tiled, and it is rated at 700 cd/m² brightness. With HDMI daisy chaining, IR and RS232 control and wall or floor mounting, it suits control rooms, command centres and meeting rooms in Qatar. Request a quote for your layout.

What the LS550UEH-EF is built for

The Dahua LS550UEH-EF is a 55-inch display unit designed to be tiled with others into a video wall. It uses an ADS panel rated for continuous 24/7 operation, so it can run the long hours that control rooms and monitoring centres demand. Each cabinet offers Full HD resolution of 1920×1080 on a 16:9 screen, with a surface treatment that reduces glare under bright lighting.

Specifications that matter for a video wall

The bezel-to-bezel gap of 0.88mm is the figure most buyers compare first. It is made up of 0.48mm on the top and left edges and 0.4mm on the bottom and right, which keeps the joins between panels narrow enough that the wall reads as one continuous image. Brightness is rated at 700 cd/m², the contrast ratio at 1200:1, and the viewing angle at 178 degrees horizontally and vertically, so content stays readable from the side of a room.

Built-in 3D noise reduction and factory calibration are aimed at picture consistency. The picture splicing function is listed as a feature for combining several units; confirm the exact setup procedure with the SmartRooms Qatar team before you commit to a layout.

Inputs: HDMI, DVI-D, VGA (D-Sub), CVBS on BNC, two USB ports, audio and IR.
Outputs: two HDMI, one VGA, one CVBS on BNC, RS232 and audio.
Control: infrared and RS232 dual mode, with remote control from a computer.

Where it fits in Qatar

In a security operations room in the Industrial Area, a row of these units can show several camera feeds, alarms and dashboards at once, running through day and night shifts. In a university media lab in Education City, a three-wide wall of narrow-bezel panels can present lecture material and research visuals without seams that distract the eye. A ministry or bank briefing room in West Bay might use a single unit or a small array to show live data during meetings that connect Doha with teams abroad.

Lobby and retail installations in hotels and shopping malls are also common, but plan these around the unit's indoor operating limits.

What to plan before installation

Each unit weighs 24.3kg net and 34.1kg gross, and the package measures 1360mm × 945mm × 280mm, so plan for at least two people to handle it. The wall-mount pattern is 600×400mm with M6 fixings, and the unit can also be set up as a floor-standing display. Check that the wall or frame can carry the load and the bracket footprint, and book a free site survey with SmartRooms Qatar before fixing anything to a wall.

Power is AC100–240V at 50/60Hz, which covers Qatar's 240V 50Hz supply. Typical consumption is 215W and maximum is 230W, with standby below 0.5W. The operating range is 0–50°C and 20–80% relative humidity, non-condensing. Summer temperatures in Qatar can exceed 45°C, so the room needs reliable air-conditioning and airflow to keep the unit inside its rated range.

Confirm the number of units in the wall and the required HDMI chain before ordering.
Plan cable routing for RS232 or IR control if you intend to manage the wall from a computer.
Leave room for airflow around each cabinet.

Request a quote for your video wall

Tell us the wall size, the number of units and the control system you need, and the SmartRooms Qatar team will prepare a quotation, usually within one working day. We supply, deliver to all eight municipalities of Qatar, install professionally, and accept purchase orders and government tender submissions. Request a quote for the Dahua LS550UEH-EF today.

Highlights

0.88mm bezel-to-bezel ultra-narrow design
Industrial-grade ADS panel for 24/7 operation
700 cd/m² brightness with anti-glare surface
1920×1080 Full HD with 1200:1 contrast ratio
HDMI, DVI-D, VGA, BNC and USB inputs
IR and RS232 dual control with HDMI daisy chain
Operating range 0–50°C, 20–80% RH non-condensing

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- LS550UEH-E F

Display14

Diagonal Size: 55"(16:9)
Panel Type: ADS
Resolution: 1920×1080 (FHD)
Bezel Width: 0.48mm (T/L) , 0.4mm (B/R)
Backlight: Direct LED
Brightness: 700 cd/ m²
Contrast Ratio: 1200:1
Pixel Density: 40dpi
Viewing Angle: H178°, V178°
Response Time (G-to-G): 8ms
Color Depth: 8bit (16.7M)
Color Temperature: 10,000K
Surface Treatment: Haze 25%, 3H
MTBF: 50,000h

Signals2

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

General13

Power Supply: AC100V ～ AC240V, 50/60 Hz
Power Consumption (Typical): 215W
Power Consumption (Max.): 230W
Energy Efficiency Class (EU): G
Installation Mode: Floor-standing, wall-mounted
Wall Mount VESA: 600×400mm, M6
Control Mode: Infrared, RS232 dual mode, supporting remote control by computer
Net Weight: 24.3kg (53.6Ib)
Gross Weight: 34.1kg (75.2Ib)
Product Dimension (W×H×D): 1210.5mm×681.3mm×115.8mm (47.7"×26.8"×4.6" )
Package Dimension (W×H×D): 1360mm×945mm×280mm (53.5"×37.2"×11.0")
Operating Environment: Temperature 0 ℃ ~+50 ℃
Humidity: 20%RH~80%RH (non-condensing)

Downloads

4 files from the manufacturer

PDF Datasheets LS550UEH-EF_Datasheet_2024.11.pdf 635 KB PDF Manuals & guides LCD Display Wall Unit_User's Manual_V1.0.0.pdf 654 KB PDF Manuals & guides LS550UEH-EF_INSTALLATION_METHOD_EN.pdf 818 KB PDF Drawings & CAD LS550UEH-EF_DIMENSIONS.pdf 214 KB

Questions about LS550UEH-EF

What is the Dahua LS550UEH-EF used for?

It is a 55-inch Full HD display unit made to be tiled with other units into a video wall, not a standalone screen. Its ADS panel is rated for continuous 24/7 operation, which suits surveillance centres, command rooms and monitoring spaces. In Qatar, a security operations room in the Industrial Area might combine several units to show camera feeds, alarms and dashboards across day and night shifts.

How narrow is the bezel, and why does it matter for a wall?

The bezel-to-bezel gap is 0.88mm, split into 0.48mm on the top and left and 0.4mm on the bottom and right. Narrow borders make the joins between panels hard to see, so a wall of these units reads as one picture rather than a grid of screens. Each cabinet is 1210.5mm wide, so three units side by side span roughly 3.6 metres before any mounting frame is added.

Which video inputs does the unit have?

The unit has one HDMI input, one DVI-D input, one VGA (D-Sub) input and one CVBS composite input on BNC. It also has two USB ports, an audio input and an IR input. Confirm your exact source mix with the SmartRooms Qatar team before the quotation is finalised, so the wall receives every feed it needs.

Can the units be daisy-chained over HDMI?

Yes. The product specification supports HDMI daisy chaining, and the unit provides two HDMI outputs alongside its HDMI input, so one feed can pass from display to display. The data does not give a maximum chain length or the resolution limit across a chain, so ask the SmartRooms Qatar team to confirm the chain for your wall before ordering cables and a source.

How do I control the wall from a computer?

The unit supports infrared and RS232 dual-mode control, including remote control by computer. A facilities team in Education City could run a campus media wall from one control PC over RS232, while keeping the infrared remote for adjustments inside a meeting room. Plan the cable route from the control PC to the first display before installation, and confirm the RS232 setup with the SmartRooms Qatar team.

Does it run on Qatar's mains power?

Yes. The power supply is rated AC100–240V at 50/60Hz, which covers Qatar's 240V, 50Hz mains. Typical consumption is 215W and maximum is 230W, with standby below 0.5W. For a wall of several units, add the typical figure for each display to your electrical load, and have a qualified electrician confirm the circuit and socket arrangement at your site.

Can it be used in a hot, unair-conditioned space?

No. Plan for air-conditioned indoor rooms. The operating range is 0–50°C with 20–80% relative humidity, non-condensing. Qatar summer temperatures can exceed 45°C, which leaves little margin, so the room needs reliable cooling and airflow around the cabinets. The data does not rate the unit for outdoor or dusty use, so do not specify it for outdoor installation.

Can it be wall-mounted, and what bracket pattern does it use?

Yes. The unit supports wall mounting and floor-standing installation. The wall-mount pattern is 600×400mm VESA with M6 fixings. Each cabinet weighs 24.3kg net, so the wall or frame must carry the load of every unit in the array. Book a free site survey with SmartRooms Qatar before drilling into a boardroom or control-room wall, to check structure, fixings and access.

How much does each unit weigh, and how is it packed?

The net weight is 24.3kg and the gross weight, with packaging, is 34.1kg. The package measures 1360mm × 945mm × 280mm, while the cabinet itself measures 1210.5mm × 681.3mm × 115.8mm. Plan for at least two people to lift and position each unit, and make sure lifts, doorways and stairs at your site can take a package of that size before your delivery is arranged.

Is this unit suitable for a meeting room, or only for a large wall?

It suits both, depending on the room. A single 55-inch unit works in a smaller meeting room or a corner of a control room where one display is needed. For a boardroom or lecture space that needs a large image, several units tiled together with the narrow bezel give a bigger picture. Share your room size and viewing distance, and the SmartRooms Qatar team can suggest the right layout.

What does the picture splicing function do?

The built-in picture splicing function is listed as a feature for combining several units into one wall. Together with the factory calibration for colour uniformity and the built-in 3D noise reduction, it is aimed at consistent images across the wall. Ask the SmartRooms Qatar team for the setup steps and the number of units you would configure before you buy the wall.

Can SmartRooms Qatar supply this for an LPO or government tender?

Yes. We accept purchase orders (LPOs) and government tenders, including submissions through Monaqasat, and payment can be made by bank transfer, cheque or purchase order. Quotations are usually issued within one working day. Products are covered by the manufacturer's warranty. For a multi-unit video wall, send the number of panels and the site location so the quotation covers all units and delivery to your municipality.