50'' Class (49.5'' Diagonal) LED HDTV

  • Full HD 1080p Resolution
  • LED Backlighting
  • MCI 240
50" Class (49.5" Diagonal) LED HDTV


  • Screen Size


  • Screen Size Class (diagonal)
    50" Class (49.5" diagonal)
    1920 x 1080
  • Display Type


  • TV without Stand (WxHxD)
    44.41" x 25.98" x 2.20"
    TV with Stand (WxHxD)
    44.41" x 27.87" x 10.04"
  • TV without Stand Weight
    30.4 lbs
    TV with Stand Weight
    31.3 lbs
  • TV Shipping Dimensions (WxHxD)
    46.89" x 29.33" x 5.75"
    Shipping Weight
    39.0 lbs


  • Triple XD™ Engine
    Picture Mode
    8 Modes
  • Aspect Ratio
    6 Modes
    Just Scan (1:1 Pixel Matching)
    HDMI, Component, RF: 1080i, 1080p, 720p
  • Real Cinema 24p (2:2 pull down)
    Picture Wizard


  • Speaker System
    2ch Speaker System
    Audio Output Power (Watts - THD 10%)
  • Mono/Stereo/Dual (MTS/SAP)
    Dolby® Digital Decoder
  • Sound Mode
    6 Modes
    Clear Voice II
  • Sound Optimizer
    3 Modes
    Optical Sound Sync


  • Screen Share
    - MHL (Mobile HD Link)


  • Video
    DivX HD
    AC3 (Dolby Digital), EAC3, HE-AAC, AAC, MPEG, MP3, PCM
  • Photo


  • RF In (Antenna/Cable)
    1 (Rear)
    Component Video In(Y, Pb, Pr + Audio)
    1 (Rear)
  • Composite In (AV)
    1 (shared w/Component)
    2 (1 Rear, 1 Side)
  • Digital Audio Out (Optical)
    1 (Rear)
    USB 2.0
    1 (Side)
  • RS232 (USB port)
    1 (no power on)


  • VESA® Size (mm)
    400 x 400


  • Power Supply (Voltage, Hz)
    100V ~ 240V, 50/60 Hz
    Standby Mode


  • Limited Warranty
    1 Year Parts & Labor

What people are saying

Rated 5 out of 5 by from Beautiful colour crisp clean picture I bought this tvs out a month ago and the color is great and the picture is crisp and clear. I heard LG TVs have the highest rating and it’s true!
Date published: 2018-12-12
Rated 1 out of 5 by from Product wont last. After a year TV turns off by itself, and some time wont connect to internet its never been dropped still or anything, i have 2 tv and both are doing the same thing, LG wont fix them under warranty i have to pay outta pocket to fix them because i dont have any receipts.
Date published: 2018-11-03
Rated 5 out of 5 by from Love the size of the T.V. making it easier to read My Dad had looked into new T.V.'s and so the hard work was done. He lives in Illinois and as soon as I returned to Arizona, I went to Best Buy and bought this T.V. I LOVE this tv.
Date published: 2017-12-13
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Ask your questions. Share your answers.
Please review the detailed product information and help guides in the
Product Support section for this product prior to posting a question.

Where can I buy led backlighting replacements for this tv?

Asked by: Wayne27
Parts and accessories can be obtained through our parts distributor, Encompass Parts. Their contact number, for placing orders and pricing information, is 866-779-7906. You can also use their website, at https://www.encompass.com/ ^CP
Answered by: ChrisPSM
Date published: 2020-01-03

how much is a main board for a.50lb5900 - UV serial number 410 rml M6 3424

Asked by: Cowboy cool 48
For parts pricing, please see Encompass Parts Distribution at 866-779-7906 or https://lg.encompass.com ^AC
Answered by: amber
Date published: 2017-12-27

How do I hook up to internet 

Asked by: joe hicks
We appreciate your interest in this television and its features. This model has not been designed with a Network Adapter, and no method available to connect to the Internet.
Answered by: NeilE
Date published: 2017-06-20

I need a Ethernet to a HDMI 

Asked by: jojoba
HI Jojoba. We will need some clarification on your inquiry as we are not clear on what an Ethernet to HDMI is for the LG 50" Class (49.5" Diagonal) LED HDTV, Model # 50LB5900. Those are 2 different ports and the 50LB5900 does not have any Ethernet ports on it...^IFV
Answered by: LGJoel
Date published: 2017-03-06

Is this a smart tv?

Asked by: Cheto
We appreciate your interest in this television. This model does not appear to have a network adapter built in, nor any WiFi capabilities. As such, this model cannot connect to the Internet, nor can it utilize any online applications. This model will not be considered a Smart TV.
Answered by: NeilE
Date published: 2017-02-15

Have sound but screen went black

Asked by: Mary joes
We regret the inconvenience you have experienced with this television. If this TV will not light up, and it is getting power properly, then it will likely require service. To make service arrangements, you may either contact our Customer Interactive Center at 800-243-0000, or you can check our Repair Provider Lookup on our website, at http://www.lg.com/us/support/repair/support-repair-provider-lookup.jsp.
Answered by: NeilE
Date published: 2017-02-13

What size screws do I need to mount my stands to my LG 50 inch Smart TV? I bought it last year.

Asked by: MikeLABR
We appreciate your interest in this television and its accessories. According to page 8 of the owner’s manual, the stand is connected to the TV using 4 machine screws with a M4xL14 measurement.
Answered by: NeilE
Date published: 2017-01-27

Is this tv arc compatible?

Asked by: Jon p
The LG 50" Class (49.5" Diagonal) LED HDTV, Model # 50LB5900 does not have any HDMI ARC ports on it...^IFV
Answered by: LGJoel
Date published: 2017-01-13
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