Good morning from Ionian Sea, West Greece…
We have use SD05 for free diving until 30 meters deep, while spearfishing. It’s the better small diving light for free diving. So simple…
Powerful, very easy to use with the rotating ring, with bright hot spot and a very useful spill, in a palm size light.
We use five of them for three and half months in salt water without problems at all. Samsung 40T on them…
In free diving there is no possibility to activate the time step down, or the thermal step down, so this light seems to be the perfect small size free diving light…
It would be better ofcourse if the emitter was the new 3 V XHP50.2, because we wouldn’t have the low efficiency boost driver, but maybe in the future Sofirn will do it…