So my ceiling light suddenly dimmed and didn’t turn bright again. I replaced the led light bulbs in there and now its alls good again.
Why do led lights not simply “burn out” or fail completely? Instead they fail by producing half (or less)the amount of light they used to. This seems like a very odd way to break. Can anyone explain why they break like this?
There are multiple LEDs in the bulb and they’re overdriven, meaning they’re designed to fail. They can be modified to put out dimmer light that will last a very long time but that’s not something most people know how to or will do. Failed ones like you describe are usually repairable also but same issue that most don’t know how to or won’t.
They fail like that because one element dies entirely which messes up the circuit. If the dead one is bypassed with a small resistor the others will light back up.