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Why Outdoor Flood Lights Go On and Off

My outdoor flood light that is attached to the garage keep going off and on. It is on for about 10 minutes and off for about 20-30 minutes…

Setting Motion Detector Flood Light Sensitivity
Background: Sarah, a Homeowner from Ann Arbor, MI

Question: My outdoor flood light that is attached to the garage keeps going off and on. It is on for about 10 minutes and off for about 20-30 minutes. I have already replaced the whole light fixture with a new one. It worked find for about a month or so. What can be causing this problem?

Dave’s Reply:
Thanks for your electrical question Sarah.
The Following links will assist you with your electrical question:

Adding a Motion Detector Head to an Existing Fixture


Motion Detector Controlled Outdoor Lighting.
There is a variety of motion control devices available for you to choose from. My experience is that the less expensive fixtures do not perform very well.

Motion detector heads are available for purchase separately and there is a variety of sensing configurations available.

Lighting For The Home

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