Aonsaithya
Newly Enlightened
- Joined
- Dec 1, 2014
- Messages
- 13
Probably oil residue; I should've realized that myself! Thanks.
I got them from a well-known (and apparently reputable) webstore about 100km from here, no idea on their source. The actual packages appeared untampered with, but I only opened one of the two and then photographed just one bulb. I'll have a look at the others and clean them all (and probably the PY21W and W5W bulbs while at it).
While I seem to recall seeing a bottle of isopropyl alcohol in my apartment in the past few years, I have plenty of this stuff at the ready which I've used to clean PCBs, CPUs etc. It's probably adequate for the job?
I got them from a well-known (and apparently reputable) webstore about 100km from here, no idea on their source. The actual packages appeared untampered with, but I only opened one of the two and then photographed just one bulb. I'll have a look at the others and clean them all (and probably the PY21W and W5W bulbs while at it).
While I seem to recall seeing a bottle of isopropyl alcohol in my apartment in the past few years, I have plenty of this stuff at the ready which I've used to clean PCBs, CPUs etc. It's probably adequate for the job?