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In article ,
wrote:
Now, show us a link where the emitter is the cause of the flicker, and not the driver.

A Practical Example of GaN-LED Failure Cause Analysis by Application of Combined Electron
Microscopy Techniques

Page 2: ...after a short time, the blue and white LEDs either started to flicker, showed a
reduced light output, or spontaneously failed completely, whereas the red LEDs present in
the same module in parallel continued to function correctly.

Page 4: The further observation of cross-sections of the nitride layers inside revealed the
reasons for the devices malfunctions. In Figure 4, an example of a cross-section of an
LED exhibiting failure type (B) (flickering dark and bright) is shown. One can see that
beside the bond foot, the nitride semiconductor layer has slightly lost contact to the back
side of the device and, moreover, shows tiny cracks across the layer.

http://www.mdpi.com/1996-1944/10/10/1202/pdf

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