Brightness Booster makes the picture brighter, but an OLED performs at its best in a room where you can dim the lights.
Films and series
Very good
Perfect black, Dolby Vision, Filmmaker Mode and Dolby Atmos sound: cinema at home.
Sport
Very good
Native 120 Hz, OLED Motion and very wide viewing angles: the action stays sharp, even when viewed from the side.
Gaming
Excellent
4 HDMI 2.1 ports, up to 144 Hz, 0.1 ms, G-Sync and FreeSync Premium: ready for PS5, Xbox and PC.
Streaming
Very good
webOS 25 with Netflix, Disney+, Prime Video, YouTube, AirPlay 2, Google Cast and free LG Channels.
Description
LG OLED55C54LA
55" (139 cm) OLED evo 4K Ultra HD TVα9 AI 4K Gen8 processor with Brightness BoosterNative 120 Hz, G-Sync and FreeSync Premium up to 144 Hz4 HDMI 2.
The LG OLED55C54LA is the 55-inch (139 cm) OLED evo C5 TV from the 2025 range. Its 3840 x 2160 pixel 4K Ultra HD panel runs at 120 Hz natively and goes up to 144 Hz when gaming. The α9 AI 4K Gen8 processor analyses every scene in real time: AI 4K upscaling, Dynamic Tone Mapping and automatic picture adjustment based on the type of programme and the room's lighting.
Every pixel lights up and switches off on its own: blacks are perfect, contrast is infinite and the picture still looks great when viewed from the side. Brightness Booster makes the picture brighter than on previous generations. The TV supports Dolby Vision, HDR10 and HLG, with Filmmaker Mode to watch films as the director intended. For sound, AI Sound Pro creates virtual 9.1.2 sound from the 2.2 channels (40 W), compatible with Dolby Atmos, with Clear Voice Pro for clearer dialogue.
The webOS 25 system gives access to streaming apps (Netflix, Disney+, Prime Video, YouTube), the free LG Channels, AirPlay 2 and Google Cast. The AI Magic Remote with pointer, scroll wheel and microphone lets you search for a film by voice or control your smart home (LG ThinQ, Matter, Google Home, Alexa). Connectivity: 4 HDMI 2.1 (4K 120 Hz, eARC, VRR, ALLM, QMS), 3 USB, Ethernet, Wi-Fi 6 and Bluetooth.
For gamers, the C5 supports Nvidia G-Sync and AMD FreeSync Premium up to 144 Hz, with a response time of 0.1 ms, HGiG mode and the Game Dashboard. Dimensions without stand: 122.2 x 70.3 x 4.5 cm, weight 14.1 kg, VESA 300 x 200 wall mount. Energy class F in SDR (77.4 W) and G in HDR (191 W). LG guarantees software updates and spare parts for 8 years after the end of sale.
Specifications
All features
General
Type
OLED TV 55"
Tuner and reception
HD terrestrial tuner
Yes
Terrestrial tuner 2 (DVB-T2)
Yes
Satellite tuner (DVB-S2)
Yes
HD cable tuner (DVB-C)
Yes
Dual tuner
No
HbbTV
Yes
CI+ compatible
Yes
EPG (electronic programme guide)
Yes
Other
Teletext, subtitles, audio description
Sound
RMS power (W)
40
Dolby Atmos compatibility
Yes
Sound type
AI Sound Pro (virtual 9.1.2), 2.2 channels
Other
Dolby Atmos, Clear Voice Pro, AI Acoustic Tuning, Sound Sync, Bluetooth Surround, WOW Orchestra
European standards
Screen size (cm)
139
Screen size (inches)
55
Energy class (March 2021)
F
Energy consumption SDR mode per 1,000 h (kWh)
77,4
Energy efficiency class in HDR mode
G
Energy consumption in HDR mode per 1,000 h (kWh)
191
Standby power consumption (W)
0,5
Standby power consumption with network connection maintained (W)
2,0
Type
Television
Aspect ratio
16:9
Screen resolution (pixels)
3840 × 2160
Visible screen area
82.3 dm²
Display technology used
OLED
Image refresh rate (default)
120 Hz
Guaranteed software updates (years)
8
EPREL datasheet
2221785
Accessories
Accessories included
AI Magic Remote with batteries, Power cable
VESA mount compatibility (wall bracket)
300 × 200 mm
Picture
Range
OLED Evo
Screen type
OLED
LED type
4K OLED
Curved screen
No
Resolution type
UHD /4K
Smart TV
Yes
HDR (High Dynamic Range)
Yes
HDR formats
Dolby Vision, HDR10, HLG
Picture enhancement
OLED Colour, AI Picture Pro (AI Super Upscaling 4K, Dynamic Tone Mapping), Brightness Booster, AI Genre Selection, AI Brightness Control, Filmmaker Mode, OLED Motion, QMS, QFT
Processor(s)
α9 AI Processor 4K Gen8
Frequency
Native 120 Hz, up to 144 Hz in gaming (VRR)
Stand type(s)
Central
Colour
Grey
Finish / Shade
Dark titan grey (Dark Titan Silver)
Dimensions and weight
Dimensions without stand (W x H x D in cm)
122,2 × 70,3 × 4,51
Weight without stand (kg)
14,1
Dimensions with stand (W x H x D in cm)
122,2 × 75,7 × 23
Weight with stand (kg)
16
Features
Wi-Fi
Yes
Bluetooth
Yes
Internet TV
webOS 25
Special Smart TV feature(s)
App catalogue (streaming apps, cloud gaming apps), LG Channels
Voice assistant
LG ThinQ AI, Alexa, Google Assistant compatible
Special gaming feature(s)
Nvidia G-Sync and AMD FreeSync Premium compatibility, VRR up to 144 Hz, HGiG Mode, Game Optimiser, Game Dashboard, ALLM, response time 0.1 ms
Other feature(s)
Hands-free voice control (ThinQ and Alexa), connected device control (LG ThinQ, Google Home, Matter compatibility, Apple Home compatibility), Google Cast, AirPlay 2, Remote control via mobile app, Web browser, AI features, Personalised profiles, Thematic sections, Multi-screen, Always ready
The LG OLED55C54LA measures 122.2 × 70.3 × 4.51 cm (W × H × D, without stand). All dimensions are in the technical specifications above.
What's its energy class?
Class F, for energy consumption of 77.4 kWh per 1,000 hours. The EU product datasheet is available on this page.
What is the LG OLED55C54LA best suited for?
It is particularly suited to: films and series, sport, gaming, streaming. The details for each use are in the 'Ideal for' section.
How long are spare parts available?
Spare parts are available for 8 years. The appliance is covered by a 2-year warranty.
Can I see it and take it away at the Temploux store?
Yes, it's in stock at our Temploux store (Route de Saussin 62, Temploux) to take away straight away. The store is open Wednesday to Friday 10 am to 6 pm and Saturday 10 am to 4 pm.
