found this from member William quilles

well worth a read and great pictures.

his equipment makes me drool

Thanks for that, very helpful.


“The other significant challenge that bulbs face, is that when the filament is cold (it has not been used in a while) its resistance to current is much lower than once in operation, so it suffers from a current spike when voltage is first applied. This is the reason most bulbs in the home die after a while - and they don’t die while they are ON, they die when you first turn them ON.”

I didn’t know that, but it makes perfect sense! He also raises a good point about the spectrums of LED and incandescent, I hope one day we can get the same spectrum from an LED source.

he goes by the name wquiles in cpf, he does awesome work!