Pictured is my old 10mw tracker next to the new 30mw. It's a great product, but remember that it's three times more powerful, which means the battery life is much shorter. MUCH LESS. I use them every day and sometimes I have to wear them all day. 30mW will die in a day or two with constant power. 10mw lasts more than a week but is obviously less bright. With this new 30mw I can easily find fiber breaks 1000ft further than the old 1. Just make sure you always have fresh batteries .
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