Why are some LEDs not lighting up after assembly, and how to avoid it?

This is because LED components may be affected by static electricity, temperature curves or welding stresses during installation, reflow soldering and storage. Therefore, some LEDs may fail to light up, have uneven brightness or exhibit abnormal colors.

Therefore, we recommend that large-scale LED projects undergo functional testing before shipment.

Before leaving the factory, this test can promptly identify and fix potential faults. This can avoid time and cost waste caused by troubleshooting or rework in the later stage.

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