Have you ever put up your holiday lights only to realize that some of your bulbs don't light up? Don't worry! With the light keeper pro, you can fix most lighting issues in seconds. Simply plug in your light set into the pro, press the trigger, and watch the shine come back to life. It works excellent on incandescent mini light sets, icicle lights, net lights, outdoor decorations, and pre-lit holiday trees, garlands, and wreaths. Product Features: Light keeper pro-the complete tool for fixing your holiday lights Includes an audible continuity detector as well as a fuse and bulb tester Include an easy-to-use bulb puller, storage compartment, and extra 2.5 volt bulbs Batteries included UL certified and approved for indoor or outdoor use Works great on incandescent mini light sets, icicle lights, net lights, outdoor decorations, and pre-lit holiday trees, garlands and wreaths Dimensions: 2"H x 11"W x 8"D Material(s): plastic