when I turn my fluorescent kitchen light off, my outside p.i.r security light comes on, why? the problem started when my father moved the p.i.r up above the door
Sounds like the sensor on your light might be aimed incorrectly. It could be that it is sensing the movement in your kitchen, and when the kitchen light is turned it becomes dark enough for the light to activate. Try adjusting where the sensor is pointing and see if that helps at all.