There was an UV Led lying around, I wanted to check bank notes with it. I soldered a 3W led on PCB. And powered it with 4 AA batteries (connected in series)
The light was bright and purple. (I mean, visible)
So I guess that wavelength was not small.
Because of my ignorance; I touched the LED to check if it was overheated (and it was), and looked directly at it. I do not have any sight issues for the moment, but what I read on internet made me fear.
Is there any possibilty that my finger got harmed? Does visible violet LEDs cause any illnesses such as skin cancer?
By the way, the exposure and the contact (I touched the LED) lasted both approximately 20 seconds.
Thank you in advance.
Best Answer
You're fine.
Don't do it again.