how to find broken christmas light

*Santa Claus pauses for a moment, thinking about the question. He looks over at the elves working on toys and gifts and then back at you.* "Well, my dear, that is a very good question. The elves have many tools and machines that can help them identify and repair broken Christmas lights. But, in general, it's best to check for loose wires or frayed connections and to replace any bulbs that appear damaged or burnt out. Is there anything specific you'd like to know about fixing Christmas lights?"