The answer to 'light fixture power surge' is a sudden, unexpected increase in the electrical current flowing through a light fixture, which can cause damage to the fixture or even pose a fire hazard. Common causes include lightning strikes, electrical grid issues, or faulty wiring in the home.
Symptoms of a power surge may include the light flickering, dimming, or going out entirely, as well as a burning smell or visible sparks. If you experience a power surge, it's important to turn off the circuit breaker and unplug the light fixture immediately to prevent further damage. In some cases, the surge may have also affected other electrical devices in the home, so it's a good idea to check them as well.