The answer to 'why is my light fixture power surge' is that a power surge in a light fixture is often caused by electrical issues in the home's wiring or the fixture itself. Common causes include loose connections, faulty wiring, overloaded circuits, or problems with the light fixture's internal components. Symptoms may include flickering, dimming, or sudden power fluctuations in the light.
To troubleshoot and resolve a power surge in a light fixture, you'll first want to inspect the fixture itself for any visible damage or loose connections. If the issue seems to be with the fixture, you may be able to replace the bulb or tighten any loose components. However, if the problem is with the home's electrical system, it's best to call a licensed electrician to diagnose and repair the issue. Attempting to work on electrical systems without proper training and equipment can be dangerous and lead to further damage.