00:00:02that never need batteries or replacement
00:00:04bulbs this is too good to be true I
00:00:06really wanted to know so today I decided
00:00:09to build my own to start I bought an
00:00:12economy flashlight for a dollar 49 then
00:00:15I broke it down to its components after
00:00:18removing the Parts I didn’t need I cut a
00:00:20piece of 1-inch PVC pipe and wrapped it
00:00:22with insulated magnet wire next I found
00:00:25a rubber bouncy ball and split it in
00:00:27half to plug the ends of the tube before
00:00:30sealing off the top I placed inside a
00:00:32three quarter inch by one inch neodymium
00:00:34rare-earth magnet I used an open flame
00:00:37from my barbecue igniter to remove the
00:00:39coating from the ends of the wires then
00:00:41I hooked the exposed ends to my
00:00:42multimeter to test it out I was
00:00:45surprised that when I shook the tube it
00:00:47easily generated an alternating current
00:00:49of over four volts to prevent damage to
00:00:52the rest of the wire coating I wrapped
00:00:54some packing tape twice around the tube
00:00:56this also helped keep the wire in place
00:00:58and keep the tube snug in the casing
00:01:01next I drew up a schematic for the
00:01:03circuit I would need and I went to work
00:01:05soldering and twisting wires in place I
00:01:07use a rectifier I found on a junk
00:01:10circuit board to convert the AC from the
00:01:12shaker directly to DC I wired this to a
00:01:15five and a half volt one farad
00:01:17electrolytic capacitor that I found on
00:01:19the same board next I wired a rocker
00:01:22switch that I hoped would fit in the
00:01:24pre-existing switch hole and luckily it
00:01:26did I carefully packed all the
00:01:28components inside the casing and left
00:01:31just the two lead wires hanging out for
00:01:34convenience in changing out future LEDs
00:01:36i soldered an eight pin IC socket to the
00:01:39positive and negative lead wires then I
00:01:41hot glued it to the underside of the
00:01:42reflector and the fit couldn’t have been
00:01:44better
00:01:45to finish up I inserted a 10 millimeter
00:01:48white LED that I got at RadioShack for
00:01:50about three dollars I screwed the cap
00:01:53back on and done my very own shake
00:01:56flashlight I
00:01:58tested it out and was amazed at the
00:01:59results not only was the light bright
00:02:02but for just 30 seconds of shaking I
00:02:04could use my light for over 10 minutes
00:02:06well I guess that answers the question
00:02:09that yes you can run a flashlight
00:02:10without batteries as long as you’re
00:02:12willing to get a workout at the same
00:02:13time that’s another item for my
00:02:16emergency kit and it was a lot of fun to
00:02:18make I hope you’ve enjoyed watching this
00:02:20video as much as I’ve enjoyed making it
00:02:22thanks for watching
”