55SM5KC

What this discontinued 55-inch signage display is built for

The LG 55SM5KC is a 55-inch Full HD display from LG's SM5K standard signage series, designed to show menus, schedules, wayfinding and promotional loops in offices, lobbies and retail areas. LG has discontinued this model, so this page is written for organisations that already run it, buyers comparing it with newer displays, and anyone who needs a replacement that fits the same content and mounting setup.

Specifications that shape the purchase

The panel offers 1,920 x 1,080 resolution and a brightness rating of 450 nits, which suits indoor viewing in well-lit lobbies and corridors. Its orientation can be set to portrait or landscape, a practical choice for vertical menu boards and directional signs. Bezels measure 11.9 mm on the top, left and right and 18 mm at the bottom, so multi-screen arrangements look tidier than panels with heavier frames.

Typical power draw is 100 W, falling to 70 W in Smart Energy Saving mode, and the model carries Energy Star 7.0 certification. The power supply is built in and accepts 100-240 V at 50/60 Hz, a range that covers the 240 V, 50 Hz mains used across Qatar. The unit has no power switch, so plan how it will be switched on and off through your control system or the supply circuit.

Connectivity and content playback

• Inputs: HDMI, DisplayPort, DVI-D, RGB, audio and SD card
• Outputs: DisplayPort and audio
• Control: RS232C in and out, RJ input, IR receiver, pixel sensor and USB 3.0

The display is OPS-type compatible, so an OPS computer can be fitted inside the unit, and the optional OPS Kit (KT-OPSA) supports that setup. Alternatively, the external MP500 or MP700 media player can be attached. It works with SuperSign-w lite and SuperSign-c software for scheduling content across screens.

Where it fits in Qatar

In a clinic in Doha, a portrait-mounted unit in the waiting area can show queue numbers and visit guidance without taking up floor space. In a hotel in West Bay, a landscape screen near the lifts can display conference and event schedules throughout the day. In a school in Al Rayyan, several units along corridors can carry announcements and timetables, and a single LPO can cover multiple displays when a school orders them together.

Planning the installation and environment

The head weighs 17.3 kg and measures 1,238 x 714.9 x 38.6 mm, so the wall structure must be checked before mounting. The VESA mount interface is 300 x 300 mm, and the optional wall bracket (LSW350B), stand (ST-492T) and VESA adapter (AM-B330S) cover different layouts. SmartRooms Qatar offers free site surveys to check wall strength, power access and cooling before installation.

The operating range is 0 to 40 degrees Celsius with 10 to 80 percent humidity. Summer temperatures in Qatar regularly exceed 45 degrees Celsius, so install the display only in air-conditioned indoor spaces and keep it away from windows that receive direct sun. The basic package includes a remote controller with two batteries, a power cord, a quick setup guide, an RGB cable, regulatory documentation, a phone-to-RS232C adapter and a memory cover.

Request a quote for this model or a suitable replacement

Because LG has discontinued the 55SM5KC, the SmartRooms Qatar team will confirm whether this model can still be supplied or recommend a current equivalent with a matching mount pattern and connectivity. Quotations usually arrive within one working day. We deliver to all eight municipalities of Qatar and accept purchase orders, government tenders and payment by bank transfer, cheque or purchase order. Request a quote today and tell us your room, wall and content requirements.