Like the one we have (an earlier model of this):
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fact the orange (of course) one of these:
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says it lasts about 2 years in 'I'm here' mode (dim always on LED), one click gives you enough light to see by and another click, something that can blind at 20 paces!
If you really want to miff the Mrs off a VERY powerful slow speed 'strobe' that again, is so bright it hurts (Oh the fun we have ... ).
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