As for batteries, mainly I think most people are not very interested in them is the pain in the rear of charging batteries up after productions and in the case of lead acid ones, should they drain completely you can’t recharge them again. A few 12v Lead Acid batteries otherwise should be fine for use with MR-16 lamps. Look at the ah or Amp Hours to figure out what is best for what you need. I wold probably go double the max length of use to ensure they don’t get too dim during the scene. In
line I would also install a
switch so you can turn the thing off. At one
point I think I counted something like 30 exit lights rigged for hanging on pole and drape for display booths for conventions. Seemed like every time someone had a booth they would buy another set of them. Anyway, such things would be turned off during the show and go to battery backup. Than be put into the
road box with the lamp still on. Cost a few hundred dollars to get new batteries for all of them again afterwards. Don’t let them drain, after that remember it’s the amperage that can be given off for that many hours so the wattage of the lamp will also
play a factor. Such Lead Acid batteries are commonly available in say a 1.1/2" x 5" x 3" size thus would easily be installed into the frame of a
platform for hiding. Drill holes
thru the frame for the lamp. Simple enough. Juno makes some very nice spot and
wash fixtures along with other brands. You can easily remove the
track lighting plug and just
wire the
fixture to the battery in bolting the
yoke to the
platform. Decently small and intense.