COURUI DO1 'Big Head' (Black/GRAY NOW AVAILABLE) $29.99 @ Gearbest ( use coupon: gbcourui) A long-throw modder's light!

:) I think I did a nice mod underwater mod…
After cutting 0,5mm of the bottom of reflector we have a nice focus:

Then I made just a tiny modification :wink:

Tested in local swimming pool:

I’m going to use it for deep scuba diving…

^ Awesome under water video! :+1:

Looks amazing with a lot of work Mieciu. Any chance of a build thread?

Wait there’s a xpl hi v4? Where did you see or find that. As far as I know v3 is the highest bined xpl hi

I don’t know if this is the case with the one Fatlight bought, but sometimes Cree will make a higher bin in cold white only, like 10,500K white! I’ve seen this a few times. It’s sort of unofficial, undocumented, and only available at one or two places.

Hi MRsDNF

I did not document the build process… It took me almost a year to finish it.
I had a limited access to a small hobby lathe and other things in my life were more important…
Nevertheless last weekend I took it to 130ft/40m and it survived without leaks :slight_smile:

starting from 2nd minute - test of my custom software to prevent accidental short piezo pressed, accepts only longer signals.

and with some cute animals:

Thanks for the picture and video. It sure is another world down there. :+1: