This looks like a realy viable dive light, waterproof to 500ft, 33lumens, 4xAA Cells & 33 hours burn time!

The chap at Waterproof Box Company is having a spot of bother getting hold of them but he will import them if enough interest is shown.

https://sslrelay.com/s84190801.onea...ticle=0060_2680+HeadsUP+lamp+LED+=28P-2660=29