ahhhhhh ralphie!!! good to see you on here agian! I was just about to mention that light! I saw it this weekend, and was impressed! nice that you can flip the red sheild up and keep it red at all times without flippin through 4 stages just to shut a light off... it was 50$ in the store, but 30 online... waterproof too!
If you want a flashlight, find a waterproof one, Princeton Tec or Pelican, tape some surgical tubing to it to hang it round your neck and a snorkel tube mouthpiece to the end of it so you can hold it in your mouth for hands free mode.