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Can anyone give me a crash course on the difference between LUX, Lumens & Guide # (for strobes)? I have a (very) vague idea of what they are, but how do they relate to each other?
If your goal is to compare features, you can find most every underwater strobe listed in the StrobeFinder:
Underwater Strobe Comparison Guide - Digital Diver Network
This is a great resource. Is there any such comparison of dive lights?