Aka the skin cancer stick😱 nice build. Have you tried to pump a dye with it? A quick look shows tons of dyes that will excite in that range. Think I even saw a highlighter extract in ethanol. Just way too expensive for my tastes but a really cool build. I remember the first time I saw a 405nm 5mw diode when they first came out and was amazed. Welll then I remember the first 35mw 660nm diode too. Amazing times we live in. Thanks for shariing so I don’t need to buy one!