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I have these as a front porch light in a 2 story Victorian home. They don't flicker and thus far for 3 weeks have worked perfectly. I wished they didn't work through walls and didn't notice that in the description until after I started using them. Everytime someone inside the house walks down the steps they come on, our bedroom is beside the front door. The bulbs are inside glass fixtures about 6' from the outside wall. I may try a piece of reflective tape inside the fixture on the side facing the house. They will however work perfectly for the beezeway behind the house heading to the garage. I will be ordering more for there.
For the location I use it the bulb it works out perfect. I wanted a motion detecting light but did not an on a disk till dawn all the time. We have it at the front door going into the garage. Because it is radar when we are leaving the house it sense motion through the wall and it turns the light on before we get outside. When going into the house it turns on when it detects motion when we get out of the car.