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And Dog said, "Let there be light...", and so there was
#1
Now some of that light comes from a couple 100W equiv LED's controlled by dimmers.
So here's the rub;
The lights actually get brighter after being dimmed, even if they've been on for several hours. The one mounted base up gets more brighterer than the one mounted base down when either is dimmed to about 60%, or less. These two have similar cord mounted dimmers, so I'm not sure if it's a dimmer thing, or a 100W equiv LED thing. FWIW, the two bulbs are slightly different styles, and I think they may be from different manufacturers. One is a Cree bulb that came in blue packaging from Home Depot, and I *think* the other was from Costco (probably Feit?) but I'm not certain about the origin that one.

Last local point of reference is another floor lamp we have w/ a built-in dimmer, but it currently only has a 75W equiv bulb in it, and it does not fluctuate perceptibly. The self-brightening LED/dimmer combinations are in stark contrast to our Casablanca ceiling fan w/ its semi-proprietary halogen light that automatically dims itself based on internal heat; but the instructions that came w/ the ceiling fan detailed that behavior.

Can someone please 'splain why the 100's and/or the corded dimmer switches do the brightening thing? Thanks.
If they've already "brightened" at a dimmed level, and then they are turned all they way up for even a minute or so, and then are dimmed most, or all of the way down, the whole "rebrightening" thing will happen again.
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#2
My guess is the circuit in the bulb is dependent on the perceived frequency. Most dimmers chop up the wave going to the bulb. The sharper wave can increase the voltage in the rectifier circuit which increases the brightness.
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#3
Viable explanation, thanks. I replaced similar, old school dimmers w/ new LED rated dimmers awhile back... the old dimmers did not exhibit that behavior w/ the halogen/incandescent bulbs used in them for many years, but they didn't play nice w/ the LED's and therefore had be "upgraded".
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