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post #1 of 15 (permalink) Old 09-05-2008, 01:55 PM Thread Starter
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LED Question

Whats the difference between polarized and non polarized. cause i picked some up for a gauge swap and noticed afterwards it said non polarized
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post #2 of 15 (permalink) Old 09-05-2008, 02:06 PM
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polarized means they can go in any way. postive negative dont matter. non polarized means the ground needs to touch ground and power needs to touch power. when i did mine i used non-polarized and put in all the bulbs and noticed wich ones where turning on. took those ones out and spun them around and they worked.
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post #3 of 15 (permalink) Old 09-05-2008, 02:21 PM Thread Starter
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alright just checking so there is no fear of blowing a bulb for putting them in backwards then?
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post #4 of 15 (permalink) Old 09-05-2008, 02:29 PM
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na you got nothing to worry about. the ones in my dash wherent polarized and neither the ones i did in the hvac controlls. like i said installed seen wich ones wherent workin and then flip them around and they worked.
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post #5 of 15 (permalink) Old 09-05-2008, 02:38 PM Thread Starter
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cool now on the bulb holders did you use the factory ones
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post #6 of 15 (permalink) Old 09-05-2008, 02:45 PM
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yes i just removed the old bulbs and replaced with the new leds i had purchased. i dont know the difference from 1st gen to 2gen on there lights tho. i did mine and its a 1st gen. with that out of the way i can try to help you out as much as i can not knowing the difference.
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post #7 of 15 (permalink) Old 09-05-2008, 02:46 PM Thread Starter
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yeah as soon as everything comes in i will be able to better do things
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post #8 of 15 (permalink) Old 09-05-2008, 05:27 PM
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LEDs are (like the name says) diodes, which means they only allow electricity to flow in one way. "Polarized" means the bulb (the plastic part) is designed to align the light energy so the waves all come out in the same direction.
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post #9 of 15 (permalink) Old 09-05-2008, 10:15 PM Thread Starter
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Quote:
Originally Posted by Starnerf View Post
LEDs are (like the name says) diodes, which means they only allow electricity to flow in one way. "Polarized" means the bulb (the plastic part) is designed to align the light energy so the waves all come out in the same direction.

so you are saying that the light isnt focused in one direction its actually better for the said application then, if i understand you correctly.
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post #10 of 15 (permalink) Old 09-06-2008, 10:57 AM
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Quote:
Originally Posted by mysteryemotionz View Post
polarized means they can go in any way. postive negative dont matter. non polarized means the ground needs to touch ground and power needs to touch power. when i did mine i used non-polarized and put in all the bulbs and noticed wich ones where turning on. took those ones out and spun them around and they worked.
I think you're wrong but not sure. Polarized LED mean that they need to be wire correctly (ground to the ground) and non-polarized mean you don't have to worry about that (like a bulb)... but I repeat I can be wrong
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post #11 of 15 (permalink) Old 09-06-2008, 11:15 AM
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Polarization

Basically, when light is generated the waves come out in all different orientations. Polarization applies a filter so that only waves moving in a certain plane (like up and down or side to side) are allowed through. This is how LCD screens work. If you have a screen and a pair of polarized sunglasses you can see the effect. Look at the screen with the glasses on and tilt your head to the side. The light from the screen should be blocked with the glasses in some orientations, but not in others. This is because the polarized filter in the screen releases light in one orientation, and if you tilt your glasses you can block or allow that orientation through the glasses' filter.

A polarized LED has one of these filters in the bulb.
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post #12 of 15 (permalink) Old 09-06-2008, 11:21 AM
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All LEDs are polarized, by definition. When you get "polarized" LED replacements, they may be talking about two things:
- Polarized plug, so they need to go in a specific direction. Most good quality LED replacement bulbs have internal rectifiers, so the direction in the connector does not matter.
- Polarized lens, so the light travels in a specific direction and no sideways (like Starnerz suggests). This one IMO is the less probable.

So, basically go with mysteryemotionz recommendation: plug the bulbs and flip the ones not working.
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post #13 of 15 (permalink) Old 09-06-2008, 11:22 AM
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Sorry for the double post , I didn't saw adam explanation before posting this.

Last edited by Keylies; 09-06-2008 at 11:26 AM.
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post #14 of 15 (permalink) Old 09-06-2008, 11:25 AM
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Quote:
Originally Posted by adam_hawk View Post
All LEDs are polarized, by definition. When you get "polarized" LED replacements, they may be talking about two things:
- Polarized plug, so they need to go in a specific direction. Most good quality LED replacement bulbs have internal rectifiers, so the direction in the connector does not matter.
- Polarized lens, so the light travels in a specific direction and no sideways (like Starnerz suggests). This one IMO is the less probable.

So, basically go with mysteryemotionz recommendation: plug the bulbs and flip the ones not working.


Good explanation....i buy that!
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post #15 of 15 (permalink) Old 09-06-2008, 09:54 PM Thread Starter
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i appreciate the help guys
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