100% working condition.We test the led strip before shipment ,so you can buy with confidence. 
Many TV models use various different sets of LED strips. 
Please match the strips shown in the photo to the originals in your TV before ordering. 

LED strips For LG 50LN5100 50LN5130 50LN5200 50LN5310 50LN5400 -UB -UA LC500DUE 
12 piece LED backlight strip / Kit, Fit For LG TV LED Bars For LG
50LN5100-UB
50LN5130-TI
50LN5200-UB
50LN5310-UB
50LN5400-CA 50LN5400-UA 50LN5400-ZA 50 inch 
Light strip information 
If you have already opened the TV, we recommend comparing the light bar code or screen code. You could find these numbers in the light bar or screen panel. As shown below, Or you can refer to the data we provide.
L1 Strip number: 6916L-1241A 50" ROW2.1 REV 0.4 1 L1-TYPE
L2 Strip number: 6916L-1272A 50" ROW2.1 REV 0.4 1 L2-TYPE
R1 Strip number: 6916L-1273A 50" ROW2.1 REV 0.4 1 R1-TYPE
R2 Strip number: 6916L-1276A 50" ROW2.1 REV 0.4 1 R2-TYPE 
Applicable TV model 
If you have not opened the TV, we recommend that you compare the TV model. 
The model number of the TV is on the nameplate on the back of the TV. As shown below
50LN5100 50LN5100-UB
50LN5130 50LN5130-TI
50LN5200 50LN5200-UB
50LN5310 50LN5310-UB
50LN540
50LN5400 50LN5400-CA 50LN5400-UA 50LN5400-ZA 
The LED Backlight Lamp Strip Features: 
1.Consistent with the original, Brand New, no need to modify it, easy to install
2.Long operating life, typically lasting over 100,000 hours
3.Brightness is consistent with the original
4.Product length: 
L1 495 mm ( length) * 12 mm (width) * 1.0 mm (height) 5LED Lamps
L2 468 mm ( length) * 12 mm (width) * 1.0 mm (height) 5LED Lamps
R1 502.4 mm ( length) * 12 mm (width) * 1.0 mm (height) 5LED Lamps
R2 529.4 mm ( length) * 12 mm (width) * 1.0 mm (height) 5LED Lamps