Dahua LS550UCM-BF · Price in Qatar

Name: Dahua LS550UCM-BF 55-inch FHD Ultra Narrow Bezel Video Wall Display
Brand: Dahua
SKU: dahua-ls550ucm-bf
Availability: InStock

Overview

The Dahua LS550UCM-BF is a 55-inch Full HD display unit built for tiling into video walls. It has a 3.5mm bezel-to-bezel gap, an anti-glare ADS panel rated for continuous 24/7 operation, and HDMI, DVI-D, VGA and BNC inputs. Control rooms, meeting rooms and commercial display areas across Qatar can use it. Request a quote from SmartRooms Qatar for a wall layout.

What the LS550UCM-BF does in a video wall

The Dahua LS550UCM-BF is a 55-inch display unit designed to be placed side by side with identical units. Each one has a 1920×1080 Full HD panel, a 3.5mm gap between neighbouring frames made up of 2.3mm on the top and left and 1.2mm on the bottom and right, and a built-in power supply. Those details matter because a narrow gap keeps the picture across a wall looking like one continuous image.

Specifications that matter for daily operation

The panel is an ADS LCD with direct LED backlighting, rated at 500 cd/m² brightness and a 1,200:1 contrast ratio. Its response time is 8ms grey-to-grey, and viewing angles are 178 degrees horizontally and vertically. The surface is anti-glare with 25% haze and 3H hardness, which helps in rooms with windows or strong overhead light. The manufacturer rates the MTBF at 50,000 hours and describes the panel as suitable for continuous 24/7 operation.

Typical power draw is 130W and maximum draw is 166W, with standby below 0.5W. The unit carries an EU energy efficiency class G rating. Its operating range is 0 to +50°C with 10% to 80% relative humidity, non-condensing.

Inputs, control and connectivity

Video inputs: HDMI, DVI-D, VGA and CVBS on a BNC connector
Additional inputs: USB, RS232 and infrared
RS232 output for passing control signals on
Infrared and RS232 dual-mode control, including remote control by computer

Where it fits in Qatar

An operations or control room at an industrial site in Mesaieed or Ras Laffan can use a wall of these units to show plant status around the clock, with a central computer sending commands over RS232. A boardroom or meeting room in West Bay or Lusail can run a small array for dashboards and video calls during the Sunday-to-Thursday working week. A bank or government service hall in Msheireb or the Industrial Area can show queue or information screens where bright daylight from a glass frontage would wash out a standard display.

What to plan before ordering

Each unit measures 1213.7mm wide, 684.5mm high and 85.9mm deep, and weighs 18.5kg net or 26.9kg in its single-unit package. Wall mounting uses a 600×400mm VESA pattern with M6 fixings, and the unit can also be floor-standing. Confirm the wall or floor support with a site survey before fixing a multi-unit array, since the weight of several units adds up quickly. For power, the input accepts AC100V to AC240V at 50/60 Hz, and a 3×3 array drawing its maximum of 166W per unit would total about 1,494W. In a hot Qatari summer, check that room cooling keeps the space within the 0 to +50°C operating range.

Send your wall dimensions, the number of units and your preferred mounting option to SmartRooms Qatar and request a quote. We usually issue quotations within one working day, and we can work with purchase orders and tender paperwork.

Highlights

55-inch Full HD (1920×1080) ADS panel display unit
3.5mm bezel-to-bezel gap for tight video wall tiling
Rated for continuous 24/7 operation with 50,000h MTBF
HDMI, DVI-D, VGA, BNC CVBS and USB inputs
Infrared and RS232 dual-mode control, including computer control
Operating range 0 to +50°C, 130W typical power draw

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- LS550UCM-BF

Display14

Diagonal Size: 55"(16:9)
Panel Type: ADS
Resolution: 1920×1080 (FHD)
Bezel Width: 2.3mm (T/L), 1.2mm (B/R)
Backlight: Direct LED
Brightness: 500 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×1, IR×1
Output: RS232×1

General13

Power Supply: AC100V ～ AC240V, 50/60 Hz
Power Consumption (Typical): 130W
Power Consumption (Max.): 166W
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: 26.9kg (59.3Ib) (One in one) 83.6kg (184.31lb) (Four in one)
Net Weight: 18.5kg (40.8Ib)
Product Dimension (W×H×D): 1213.7mm×684.5mm×85.9mm (47.8"×26.9"×3.4")
Package Dimension (W×H×D): 1360mm×945mm×280mm (53.5"×37.2"×11.0") (One in one) 1360mm×885mm×567mm (53.6"×34.9"×22.3") (Four in one)
Operating Environment: Temperature 0 ℃ ~+50 ℃
Humidity: 10%RH~80%RH (non-condensing)

Downloads

6 files from the manufacturer

PDF Datasheets LS550UCM-BF_Datasheet_2024.9.pdf 720 KB PDF Manuals & guides LCD Display Wall Unit_User Manual_V1.0.4.pdf 665 KB PDF Manuals & guides LCD Display Wall Unit_User's Manual_V1.0.1_Arb.pdf 625 KB PDF Manuals & guides LS550UCM-BF_User's Manual_V1.0.0.pdf 613 KB PDF Drawings & CAD Dimension.pdf 231 KB DOCX Other documents LS550UCM-BF_A&E_20260902011813.docx 40 KB

Questions about LS550UCM-BF

What is the Dahua LS550UCM-BF best used for?

It is a 55-inch Full HD display unit designed as one tile in a video wall, suited to control rooms, meeting rooms and commercial display areas. Its 3.5mm bezel-to-bezel gap and panel rated for continuous operation make it a good fit where screens must run for long hours in a single array. SmartRooms Qatar can quote a wall layout around your room.

Can the LS550UCM-BF run 24 hours a day?

Yes. The manufacturer describes the panel as an industrial-grade ADS LCD suitable for continuous 24/7 operation, with an MTBF rating of 50,000 hours. For a control room in Mesaieed or Ras Laffan running round the clock, that rating matters when planning a multi-unit wall. Confirm the duty cycle and cooling arrangements with the SmartRooms Qatar team when you request a quote.

How narrow is the bezel and how does it affect a video wall?

The total bezel-to-bezel gap is 3.5mm, made up of 2.3mm on the top and left and 1.2mm on the bottom and right. Because the gap between adjacent units is so small, the picture across the wall looks more continuous than with wider frames. This is most noticeable on text, dashboards and maps that cross from one screen to the next.

Which inputs and ports does the LS550UCM-BF have?

The unit has HDMI, DVI-D, VGA and CVBS on a BNC connector for video, plus USB and RS232 inputs and an infrared input. It also has an RS232 output. Check your source devices against these ports before ordering, especially if a media player or PC uses a connection other than the ones listed. Share your sources with SmartRooms Qatar when requesting a quote.

How can the display be controlled remotely?

It supports infrared and RS232 dual-mode control, including remote control by computer. A facilities team in a Doha government building could manage a wall of these units from a central PC over RS232, while infrared covers local remote control. Tell us how many units you need controlled and what control system you use so we can quote the right setup.

Can it be wall-mounted or placed on a floor stand?

Yes. The unit is listed for floor-standing or wall-mounted installation and uses a 600×400mm VESA pattern with M6 fixings. Each unit weighs 18.5kg net and measures 1213.7mm by 684.5mm by 85.9mm. Confirm the wall structure and mounting option with a site survey before fixing several units, and tell SmartRooms Qatar which option you prefer when requesting a quote.

What power does the LS550UCM-BF need in Qatar?

The input range is AC100V to AC240V at 50/60 Hz, which covers Qatar's 240V, 50 Hz mains. Typical consumption is 130W, maximum is 166W, and standby is below 0.5W. The unit carries an EU energy efficiency class G rating. A wall of nine units at maximum draw would total about 1,494W, so include that load when planning circuits and cabling with your electrician.

Will the screen cope with Qatar's summer heat?

The operating range is 0 to +50°C with 10% to 80% relative humidity, non-condensing. Summer ambient temperatures in Qatar can exceed 45°C, which leaves little margin, so the unit should sit in an air-conditioned room that holds the space well below 50°C. Do not place it in an unventilated or open-air location without first checking conditions with a site survey.

Is a single unit suitable for a small meeting room in West Bay?

Yes, a single 55-inch unit can serve as a display in a small meeting room, and its 1,200:1 contrast and 500 cd/m² brightness suit typical office lighting. If the room needs a larger presentation surface, a 2×2 array of these units would be about 2.43 m wide, including the bezel gaps. SmartRooms Qatar can advise on the best option for your room size.

Will the LS550UCM-BF be readable in a bright bank or government lobby?

The anti-glare surface has 25% haze and 3H hardness, which reduces reflections from windows and overhead lights. The panel's 500 cd/m² brightness and 178-degree viewing angles help people standing at a counter or walking past to read the content. For a lobby in Msheireb or the Industrial Area with a glass frontage, ask for a site survey to check sightlines and glare before fixing the screens.

Do you supply and install the video wall, and how do we order?

SmartRooms Qatar supplies the display, delivers it to all eight municipalities of Qatar, and can arrange professional installation. Site surveys are free, and quotations are usually issued within one working day. Purchase orders (LPOs), government tenders and payment by bank transfer, cheque or purchase order are all accepted. Products are covered by the manufacturer's warranty.