The "Ulta-Lit Light Keeper Pro" is a red light repair tool for incandescent holiday Christmas light sets. It is battery-powered, suitable for indoor and outdoor use, and made of plastic. Designed to fix light sets, it is a handy tool for all occasions, particularly during the holiday season. Made in China, this Ulta-Lit model features easy installation and is a must-have for maintaining your festive lighting displays.
eBay