These LED bulbs are meant to replace a low-voltage halogen bulbs and they'll
even run straight off of a 9-volt battery and running off of a 9-volt
battery they draw about one ampere they can also run off of a 20 volt that
wealth battery and with the 20 volts it draws about half an ampere so that tells
me the bulb internally regulates for a constant power so it should be just fine
running off a 20 volt battery and I've been using some of these that won't work
like sometimes to fill in some dark spots when I'm filming but they're quite
expensive so it'd be cool to make a really basic work light to just fix one
of these to one of these batteries so I've been thinking of just using some of
this brass to make a couple of contacts that go into here but then I still need
something that kind of slides onto this battery and I realized I already have
some of those it's those things which are meant for transporting the batteries
and then I was trying to figure out how to attach the brass to this part here
and I realized there's two holes in here already and those exactly line up with
the contacts for the 20 volts coming out of the battery so I figured if I put a
couple of nails in those pinholes I should be able to get the battery
voltage but I just get a voltage that keeps on dropping what I realized is
when this cover gets put on here these tabs on here push into here there's
these slighty things right there and that cuts off the power well that's easy
enough to fix and with those tabs cut off I get a nice
steady voltage
now I just need to find the way of attaching this bulb here and shook up
that part before I put nails
now at this point I could call it done but causing a potential short-circuit
here would be very bad so I made this lid that fits exactly over those wires
now I have been thinking of attaching this part here to the wood so the whole
thing can be slid on as a unit but that's kind of awkward and since I don't
have an on/off switch just pulling it off and sticking it back in is
convenient enough I also don't have any means of aiming it up or down but I
could just tilt the whole battery like this or point it way down like this and
you could use other brands of 20 volt 18 volt or 12 volt batteries as long as you
can make some kind of a holder although I think for most of them it'd be easier
to come in with a nail like this and here's comparing how much light this one
is aimed at this spot and this spot is made by a Dewalt light which has a much
wider beam so I put it much closer to the wall
and of course you could just save the trouble and buy one of these except that
these ones cost a lot more than these bulbs