100% working condition.We test the led strip before shipment ,so you can buy with confidence. 
Important:

Please be sure that the LED STRIP model is EXACTLY same as ours. 
Do not match by TV Model. Many TV models use various different sets of LED strips. 

Product information
Condition: Brand new
Size (length): 540mm
Number of LED beads: 7 per strip
Each LED lamp voltage: 3V
Package Included: Kit16pcs (8.L8.R)

LED strip models:
550TV01 550TV02 V4
TB5509M V0 V1
LB55070 V2 V3
NC550DUN-SAAP1

Panasonic TV Models:
TX-55DX600B TX-55DX600E TX-55DS650B TX-55AX630B TX-55DS500B TX-55AXW634 TH-55AX670A TH-55AX670K TX-55AX630E TX-55DX603E TX-55DX635E TX-55DXU601E TX-55DXW654 TX-55DXW604 TC-55DX650W TX-55DX653E