The
Quark Tactical QT2L-X in my survival vest is set up with "beacon" (
rather than "strobe") as the second mode, but that's for attracting attention over miles and over an extended period (potentially all night). It's just one of a number of devices which will be available and the low duty cycle gives it a long duration.
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Better is the Enemy of Good Enough.
Okay, what’s your point??