yngmar, 1 month ago

LED lightbulb autopsy. All the LED chips are cracked. The lamp still flickered and sometimes worked steadily and they were not getting hot from use, merely slightly warm.

All the cracks start from where the chips have been soldered, so I think the cracking might've been caused by being soldered too hot/too long.

#LED #Lightbulb #Autopsy #Electronics #DIY

LED chip macro photo of another chip. Two cracks enter the chip from opposite sides, starting from the edge of the soldering joints. One is on the opposite end of the solder joint in this case.
LED chip macro photo, third chip. One deep crack beginning near the end of one solder joint and entering into the center of the chip.