If the LED light bar is not lit, there may be the following reasons:
1. The packaging protection of the LED flexible light bar is not perfect, causing the lamp beads to be damaged by impact during transportation.
2. The welding point of the LED flexible light bar has a virtual welding phenomenon. The vibration during transportation causes the welding point to fall off and the light bar is not bright.
3. The amount of solder in the LED flexible light bar is small, and the solder joint is easy to fall off
4. The soldering quality of the LED flexible light bar is not good, and the solder joints of the LED flexible light bar are prone to cracking and falling off during the bending process
5. The bending angle of the LED flexible light bar is too large during installation, resulting in the separation of the welding point of the LED flexible light bar and the copper foil, resulting in no light

6. Excessively squeeze the product when installing the LED flexible light bar, causing the LED flexible light bar chip to be damaged or the solder joint to deform and fall off and not bright
7. The solder resists layer of the LED flexible light bar circuit board is too thick. The solder and the circuit board cannot be completely fused together during soldering, which is also a phenomenon of virtual soldering.
8. The LED flexible light bar cannot be twisted during installation, if it is twisted, it will cause the solder joints of the LED flexible lightbar to fall off, resulting in no light