how to find blown christmas light

"Looking for blown Christmas light bulbs? Look no further! The most common culprit is a surge of power that can damage the delicate filaments inside the bulbs. This can happen when a tree is struck by lightning or a power surge during a storm, or even from overuse of extension cords or poor wiring in the home. To avoid this problem, make sure your electrical system is up to code and that you're not overloading your circuits. Additionally, keep the bulbs away from heat sources like a fireplace or candles. If you do end up with a blown bulb, be sure to replace it right away to prevent a fire hazard!"