Jun 19, 2020 #1 I Infarouge Newly Enlightened Joined Oct 29, 2013 Messages 3 The 365nm LED flashlights are commonly available for ~$10 on ebay. I am looking for a 311nm for personal research.
The 365nm LED flashlights are commonly available for ~$10 on ebay. I am looking for a 311nm for personal research.