we completely trolled the topic
... but ...
duffy, you did not understood me .. probably my poor lang skills
... I have not tried them out at all !!! ... I purchased them (they look "black" when they are off, when you turn them on they are dark, dark, dark pink, almost black but all white you have on yourself glow
.. your teeth, your eyes, your t-shirt ... ) and then I was told they are not good for PCB manufacturing, I placed them on shelve and ordered p'n'p foil
... so, I do not know if they do or does not work, never tried them ... last time I was doing photoresist was ~20y ago and I used few broken Hg lamp's to produce UV light for the process....
I will not try them for sure at least some time now as I'm fairly busy with something else, I still have bunch of perforated boards (the ones with bunch of holes and only holes) and I still have bunch of p'n'p foils .. so until I use that resources, I do not plan to go purchase photo sensitive spray nor presprayed boards.
Now, if Tiago is making this contraption to do photo resist method for PCB manufacturing all this talk is off-topic and we should stop
... but if that is his intention, then - Tiago, please lemme know what kind of tubes are those (are they black when turned off?, any writing?), and please post results when you try them on
.. mine tubes are "black", "F8W/BLB F418C3" if that helps
30cm from end of pin to end of pin or 28.5cm for the tube itself ... the F8W/BLB should mean "8W Blacklight Blue, ...
now, there's
Photolithography - Wikipedia, the free encyclopedia and there's
Black light - Wikipedia, the free encyclopedia
do they work or no ... I cannot say ... but would like to know for sure .. (and no time to test myself)