Blue Light Is The Color Of The Deep Sea !

Blue has always been my favorite color and maybe that's why my first lase was a 445nm blue laser but for anyone thinking of a water proof build for underwater use you can do no better that blue because water is a light filter and the deeper you good the more the different colors get filtered out until your left with nothing but blue !

Here's why......

https://www.youtube.com/watch?v=PDTL...ature=youtu.be