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Q & A: batteries and bulbs

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Most recent answer: 09/23/2017
Q:
Hello. I have two 12v LED bulbs normally used in automotive applications that I plan to repurpose in a Halloween craft project. Can I operate these bulbs using standard D-cell batteries, and if so, how many? Thanks!
- Steve (age 30)
Redondo Beach, CA
A:

8 D cells in series will give about the right voltage. They may not last too long but for just one night I think you'll be ok.

You have to be careful to get the polarity right with LEDs.

Mike W.


(published on 09/23/2017)

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