Have you ever put up your Christmas lights only to realize that some of your bulbs don't light up? Not to worry! With this light tester you can fix most lighting problems in just seconds. Simply plug in your light set into the tester press the trigger and watch your lights come back to life. Works great on incandescent mini light sets icicle lights net lights outdoor decorations and pre-lit Christmas trees garlands and wreaths. Features: Ladderless light tester. The tester is green in color. Includes an audible continuity detector as well as a fuse and bulb tester. Features an easy-to-use bulb puller with a trigger to check the lights. There is a plug at the end of the tester. Works on any threaded pole. You can screw this onto the pole or use by hand. Contains instructions on the back of the item. There is a free online tutorial on how to use the tester. UL listed for indoor and outdoor use. Dimensions: 7.5"L x 1.5"W x 5"H. Materials: plastic/metal/wire