Audio
| RMS rated power |
20 W |
| Audio decoders |
DTS, Dolby Digital |
| Built-in speaker(s) |
Y |
| Number of speakers |
2 |
Power
| Power consumption (standby) |
0.3 W |
| Power consumption (typical) |
80 W |
| AC input frequency |
50/60 Hz |
| Annual energy consumption |
117 kWh |
Ports & interfaces
| Headphone outputs |
1 |
| Audio (L,R) in |
1 |
| Audio (L,R) out |
2 |
| PC in (D-Sub) |
N |
| PC Audio in |
Y |
| DVI port |
N |
| Common interface (CI) |
N |
| Common interface Plus (CI+) |
Y |
| Common interface Plus (CI+) version |
1.3 |
| USB 3.0 (3.1 Gen 1) Type-A ports quantity |
1 |
| Intel® Wireless Display (Intel® WiDi) |
Y |
| RF ports quantity |
2 |
| HDMI ports quantity |
3 |
| USB 2.0 ports quantity |
2 |
| SCART ports quantity |
1 |
| Digital audio optical out |
1 |
Display
| Display technology |
LED |
| 3D |
Y |
| Display diagonal |
55 " |
| 2D-3D converter |
Y |
| Supported 3D technologies |
FPR 3D |
| Screen shape |
Flat screen |
| PMI (Picture Mastering Index) |
1500 |
| HD type |
4K Ultra HD |
Weight & dimensions
| Width (with stand) |
1234.8 mm |
| Weight with stand |
20400 g |
| Depth |
50.8 mm |
| Weight |
19300 g |
| Width |
1234.8 mm |
| Height |
727.3 mm |
| Depth (with stand) |
260.6 mm |
| Height (with stand) |
781.6 mm |
Certificates
| RoHS compliance |
Y |
| Digital Living Network Alliance (DLNA) certified |
Y |
| Energy Star certified |
N |
Smart TV
| Operating system version |
2.0 |
| Hybrid Broadcast Broadband TV (HbbTV) |
Y |
| Smart TV |
Y |
| Internet TV |
Y |
Performance
| Motion control |
Y |
| Video compression formats |
HEVC |
| Voice control |
Y |
| Luminance |
56% |
Networking
| Browsing |
Y |
| Miracast |
Y |
| Wi-Fi Direct |
Y |
| Wi-Fi |
Y |
Packaging content
| 3D glasses included |
Y |
| 3D glasses quantity |
2 |
Ergonomics
| VESA mounting |
Y |
| VESA mounting interfaces |
300 x 300 mm |
Packaging data
| Package depth |
152 mm |
| Package weight |
25900 g |
| Package width |
1330 mm |
| Package height |
810 mm |
Additionally
| Colour of product |
Silver |
| RS-232 port |
1 |
| Ethernet LAN connection |
Y |
| Ethernet LAN (RJ-45) ports quantity |
1 |
| Energy efficiency compliance |
A+ |
LG 55UF8557. Display diagonal: 139.7 cm (55"), HD type: 4K Ultra HD, Display resolution: 3840 x 2160 pixels. Operating system installed: Web OS. RMS rated power: 20 W, Audio decoders: DTS,Dolby Digital. Video compression formats: HEVC, Luminance: 56%. Colour of product: Silver
