On another note, today I found out the SD05 has a new feature - no more 3 minute step-down!
And they beefed the output from 2550 to 3000 lm.
Somebody finally realized you don’t time an underwater light, let alone a thermally managed one.
Way to go! Promptly put one in my cart.
How can I have a 5000ºk emitter as with the older version on AE?
Edit (May 17th, 2020):
Wrong thread… I posted on [Review] Sofirn SD05 Diving 21700 Flashlight