LED, what have I got?

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Forum Name: Lights, Neon, LEDs, HIDs
Forum Discription: Under Car Lighting, Strobe Lights, Fog Lights, Headlights, HIDs, DRL, Tail Lights, Brake Lights, Dashboard Lights, WigWag, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=84987
Printed Date: May 12, 2025 at 8:25 AM

Topic: LED, what have I got?

Posted By: Yuri
Subject: LED, what have I got?
Date Posted: November 01, 2006 at 11:46 PM

I was cleaning out an old cabinet at work and stumbled across an assortment of LEDs. These don't appear to be labeled in any way and I have no idea what they were used for in the past. What I want to know is... How can I tell what these are? Is there some secret way to tell? The bag probably has 50 to 100 LEDs in it, of various colors. So it would be a shame to throw these things away.

Replies:

Posted By: garrettjeepxj
Date Posted: November 02, 2006 at 12:29 AM

I would take them to like a radio shack or any place that sells led's and have them help you figure it out.

Posted By: silverado42000
Date Posted: November 02, 2006 at 4:36 AM

only way i can think of that you could find out is to get a variable power supply and just start at 2V and work you way up, most LEDs are 2-4V

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Posted By: hotmilk400
Date Posted: December 03, 2006 at 8:16 PM

sell them on the internet, they sell new for about $.32 to $.65 each. they are used, but whatever.. haha.. just sell the bag of 50 for like $7 + shipping

Posted By: bballguy162006
Date Posted: December 06, 2006 at 3:21 PM

I would have to second silverado42000.
To my knowledge there is no way to tell what color or voltage a LED is by just looking at it. If you don't have a variable power suply, and you have a few AA or AAA batteries laying around just wire two of 'em in series to get 3v (that should be pretty close). I think that would be the simplest and quickest way to check.

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