I have that dive torch, immensely happy with it. The battery life could be better since I use it on it's highest setting, but it still suffices for 2 +- 50min dives a day. By far the brightest dive torch I've ever seen (and used). I'd recommend it, although maybe with a spare battery if you regularly do multiple dives a day.
Hey, for information, I receive my EOS 32 LRZ today and the great surprise is that it has a USB-C port instead of the micro USB as in the video. Nice improvment for sure !