Get a small box, just a hair bigger than the battery. Or, get a little single cell battery holder from radioshack. It comes with wire leads too. Connect the short lead of the L.E.D. to the negative side of the battery (in a pinch, tape will do). Connect one side of the switch to the positive side of the battery and the other side to the positive side of the L.E.D.
some will work quite dim
some won't at all
use a joule thief (see below) to amplify the voltage of the battery
connect the switch inline in one of the wires that go to the battery
Maybe my project can help you, take a look:
https://www.instructables.com/id/Tealed-Led-Battery-Box-not-glue-nor-solder/
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This one might be of assistance. It uses common parts found at Home Depot and Radio Shack:
https://www.instructables.com/id/LED-flashlight-for-under-10-solderless-flat/
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Get a small box, just a hair bigger than the battery. Or, get a little single cell battery holder from radioshack. It comes with wire leads too. Connect the short lead of the L.E.D. to the negative side of the battery (in a pinch, tape will do). Connect one side of the switch to the positive side of the battery and the other side to the positive side of the L.E.D.
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Thanks ! I'm actually going to use Red ... would that work ok with AAA ?
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some will work quite dim some won't at all use a joule thief (see below) to amplify the voltage of the battery connect the switch inline in one of the wires that go to the battery
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Trouble posting: I try again.
You may have trouble lighting a white or blue led with a single AAA. a joule thief is easy to build - this one uses a disposable camera for parts.
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