Been looking at some of the blue led lighting options out there for night fluo diving and in the end just finding it way too expensive what it is so looking at the DIY options. I use those inexpensive $30 ebay 2000lm dive lights from China (not really 2000lm but bright enough) for my regular dives and has over 25 dives so far without flooding so far.
I'm now looking at trying the more powerful 8000lm rated ones like the Skyray the under $80
How hard would it be to open one of these type of lights to desolder and replace the LED's with the equivalent royal blue 450nm LED's?
Not sure if this would be the right one but something similar:
From that point I think its only a matter of ordering blue excitation filter to replace the front glass on the torch or to stack on top depending on thickness. I've seen them for around $20-30.
That would end up being under $140 for a 5x Royal Blue LED light. - I'm planing to build 2-3 of these for photo/video rig.
All the other components like yellow barrier filters for mask & camera are affordable so definately buy ready made options.