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 check your original led strip model in your TV before ordering. 

New LED backlight bar
Material: Aluminum
The price for Kit 8pcs(4*R 4*L )
LB-PM3030-GJBBY504X8ABL2
50D3503V2W3C1B3
LB50091 V1_00, LB50091 V0
FOR
 Insignia NS-50DF710NA19 NS-50DF710CA19
Sharp LC-50LB601U LC-50LB601C