Let me ask some of you smart people a question:
I have porch lights on either side of my door and garage lights on either side of my garage. The porch and garage lights are essentially the same fixtures, although the garage ones are a bit larger. Both sets have the little dimmer/motion sensors on the bottoms. But the lights are hooked up so that is bypassed. In other words, you turn the switch on, the lights come on with full brightness. You turn the switch off, the lights go off. That's it.
So, I have incandescent bulbs in all four fixtures. They all four burn with the same brightness, just as they're supposed to. I go and buy 4 orange LED bulbs for Halloween and install them. The garage lights burn with full brightness. The porch lights burn very dimly. I switched the bulbs, just to make sure it wasn't bad bulbs. No change. Put incandescent bulbs back in, and they're fully bright. Put LEDs in, and they porch lights are dim.
What is going on????