
What is the likelihood of finding asbestos in LED drivers and how to identify it?

 
I have a cuboid-shaped LED driver that I opened and found a white substance on the side. I accidentally broke a small piece of it and some fragments fell on the floor. I tested the substance with a pencil and it was soft and crumbly. I did not experience any irritation from the exposure. Is there a chance that the substance is asbestos? I have disposed of the driver in a bag and a trashcan, but I can provide more details if needed.
 
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