▶ Light Keeper Pro Mini Christmas Light tester - YouTube ~ uploaded Dec 11, 2008 Light Keeper Pro, great for fixing your broken or faulty Mini Christmas Light sets! Video provided by All American Christmas Co.
Finds and fixes problems with faulty miniature light setsNew patented technology brings you an easy-to-use system for detecting and repairing those miniature light sets that cause you so much grief each year.
You plug the tree in but not all the lights are shining. This can be a frustrating situation, especially if the tree is only 2-3 years old. Often, a Christmas light tester is the easiest way to locate the problem area. This guide is about pre-lit Christmas tree lights not working.