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by wnevets 1219 days ago
The blue tube product linked in the original comment I replied to says 254nm.

https://www.amazon.com/Blue-Tube-UV-Light/dp/B00D48XDO0/
1 comments
jefftk 1219 days ago
Whoops, sorry! I was trying to talk about the linked article, and missed that the comment had brought in a different product.
link