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Old 12-16-2015, 10:17 AM   #18
JohnnieB
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Default Re: LED lights fried?

Quote:
Originally Posted by bronsonj View Post
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As to the OP question about both dimming, are they run in series? If one starts to burn out and somehow increases internal resistance and they are in series that would explain.
The individual LEDs within the light fixture are in parallel, so if one burns out, the rest still work. The most common example of this is the red LED light bars used for the center brake light on many cars. Seeing dark spots where individual LEDs have failed is a fairly common sight.

Since all the LEDs in the headlight fixture are glowing dimly, the built in voltage regulator has probably failed due to a prolonged feeding of a higher voltage than it is designed to operate at. Since the tail light fixtures still work, they either have a different voltage regulator design, or they simply haven't failed yet.
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