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Old 02-28-2013, 08:45 PM  
bolsaboy
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Default LED Lights

We installed three LED can lights in our kitchen. all on one circuit with two threeway switches controling them. and they eluminate at different levals. Every time we switch them on a different one is brighter then the others. Any idea what would cause this?



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Old 03-01-2013, 06:28 AM  
Housedoctor57
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Not an expert in this area but I believe it is the tolerance of each LED and it's transformer. I have 6 LED cans in my home theater room. They are on a dimmer. As I dim them down, 4 go out and 2 stay barely lit. I can continue to dim and they will go out also. I moved them around in the configuration so they are at the back of the room and illuminate the wet bar area. Accidentally worked out great for me! Not sure why your levels change around. Maybe try a different LED brand.



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Old 03-01-2013, 06:47 AM  
JoeD
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How did you wire them? Tell us how you ran your cables and what cable you ran between the switches and lights.

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Old 03-01-2013, 10:04 AM  
bolsaboy
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I'm not sure how they were wired. I do remember the electrician saying that if one bulb was removed none of the remaining ones would light. If that helps.

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Old 03-01-2013, 10:29 AM  
Housedoctor57
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Quote:
Originally Posted by bolsaboy View Post
I'm not sure how they were wired. I do remember the electrician saying that if one bulb was removed none of the remaining ones would light. If that helps.
They should not be wired in series.
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Old 03-01-2013, 01:25 PM  
JoeD
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Quote:
Originally Posted by bolsaboy View Post
I'm not sure how they were wired. I do remember the electrician saying that if one bulb was removed none of the remaining ones would light. If that helps.
That is what I suspected. It means they were not wired correctly. You need to fix the wiring so they are in parallel not in series.
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Old 03-01-2013, 02:58 PM  
nealtw
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He had an electrision wire it, so maybe you should explain what he should look for.

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Old 03-01-2013, 06:10 PM  
JoeD
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Removing one bulb indicates that they are wired in series. I have NEVER heard of any lights in a house being wired in series except Christmas tree strings. If it was done by an electrician then he should call a different electrician. It does not sound correct.

Perhaps if some info on the fixtures could be provided that would help. Info on how they were wired would be helpful also but I doubt that is available if not done by the OP.

The most common mistake with three ways and multiple lights is taking a drawing with one light between the switches and trying to do it multiple lights. It is not realized that four wires are needed and not 3 wires to make it work properly. The light end up in series and are dim when turned on. This is what I was suspecting.

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Old 03-01-2013, 06:44 PM  
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You lost me Joe; In order to get them in series you would do it with one wire.

3-way-switch-multiple-lights.jpg  
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Old 03-01-2013, 08:22 PM  
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Here what commonly happens when someone uses three wire cable to wire more than one fixture BETWEEN switches.

3 light between 3 way wrong.bmp

NOTE THIS DRAWING WRONG AND WILL NOT WORK PROPERLY. It is for information only.



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