Single LEDs
Printed From: the12volt.com
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=68236
Printed Date: May 15, 2024 at 3:15 AM
Topic: Single LEDs
Posted By: xandax
Subject: Single LEDs
Date Posted: December 12, 2005 at 6:58 PM
Hey guys, I recently ordered some of those single LEDs without resistors from Hong Kong over ebay. I got them and decided to try them out. I got a 9 volt battery to test them. So it turns out that one kind of 9 volt makes the LEDs a dark blue and a different brand makes that same led a lighter blue. When the LED runs off the brand 9 volt that makes it a lighter blue it gets hot to the touch and burns out. Can anyone explain what will happen when I wire these up inside my car to the battery, after I attach the resistors. Also I'm assuming I attach the resistors to the positive wire correct? Thanks guys.
Replies:
Posted By: shocksyde
Date Posted: December 13, 2005 at 9:45 PM
well, your problem is that i dont know of any LEDs that run on 9v, highest i've heard of is around 4 volts
so if you hook a 4v LED to a 9v battery....POOF
Posted By: cowboy21
Date Posted: December 15, 2005 at 2:55 AM
i have a program to heap with the calculation of the resistors u need plus the resistor can go on either positive or negative, it is easier to stick to the same one to make the install easier, if u want a copy of the program forward ur email to me and i'll send a copy, btw it is rather small
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