Hatul
Contributor
Mine are still going strong, apart from the aforementioned issue with being hard(er) to turn on/off below ~40m. For $40 I reckon they're a steal for a tech backup (burn time allowing) or primary day/night dive light
That's probably true for any twist on-off light as the pressure is pushing the O ring against its seat.
I have 3 Dorys now for a while without any failures with recreational depth dives.
Adam