Resistance question

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Forum Discription: Topics that just don't fit anywhere else.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=19482
Printed Date: July 14, 2025 at 2:17 PM

Topic: Resistance question

Posted By: imprtfightr
Subject: Resistance question
Date Posted: September 29, 2003 at 8:43 PM

I have a little LED thing. It runs on the little tiny circle bateries. The batterys togather test at 2.76 volts. Probably a little higher because they aren't brand new. I want be able ot connect it to 12 volt for an alarm LED. How do I figure out what resistors to use and how do I wire them.

Please don't just give me the resistor size. I would like to learn how to figure it out.

Replies:

Posted By: dadshop
Date Posted: October 19, 2003 at 10:24 PM

If I remember correctly, LED lights can run on any voltage without resistors. But let me double check my resorces and I'll get back to you.

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Dads Shop

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