They're pretty useless. You have to shake them for a minute and if that doesn't seem like much, it is. Gets you in practice for other things though. Like self gratification without the gratification. Then it only lasts a minute. The small ones are useless but the big one would be nice in a pinch. I have 3 and only the big one is useful for anything.
BUT
They have a HUGE permanent magnet inside, gotta keep it away from credit cards hard drives, monitors, tv's all sorts of things. So they're a bit dangerous in that way. I like my l.e.d. flashlights. I suggest led.net Best of luck. Batteries remain a bitch, but I use rechargeables from energizer.
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I'm a happy boy, happy boy,
way to get when things are going your way. Hey Hey.
...Pretty sure I asked for Pecan Sandies...
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