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A light turning on and off by itself is not a common occurrence. However, there are some common reasons that lights turn on and off by itself.

Turning on a large appliance will instantly increase electrical demand. The sudden increase can cause the lights to dim, if only for a moment. There is nothing to be worried about as it is part of the standard demand of the current.
If the light flickering on and off is confined to a single source, the fixture itself could be faulty. Be careful, as a frayed or damaged electrical cord may throw sparks. This is a fire hazard, so check the light fixture in question.
Stormy weather can affect the power grid wherever you live. Weather can cause brief interruptions in the power supply causing the lights in your home to flicker on and off. Surge protectors or a backup power supply can help to mitigate the issue.
Problems with electrical connections which cause the lights to flicker on and off are concerning. If you have concluded this to be the likely cause contact an electrician. A professional should correct this issue.
This is a hazardous job that needs to be done correctly and safely in a manner that will last.

A few other issues could be the reason for the flickering lights:
These are all common problems that can cause lights to flicker on and off. A problem with the bulb may result from the wrong bulb for the socket, with different ratings. Power supply issues or a poor connection will cause issues. These problems can also create complications with excess heat.
Providing for numerous lighting needs, including but not limited to:
Whatever your lighting project may be, U.S. Electric can help you through the entire process. We are happy to assist from planning to project completion. Our services are guaranteed!

If your lights are still turning on and off and you have ruled out the minor issues, it is time to call an electrician. With more than 30 years of experience, our team at U.S. Electric will diagnose and fix the problem and prevent costly electrical work in the future. Schedule an electrical inspection with us today!
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