Novelty Lights BAT50 LED Battery Operated Christmas Mini Light String Set, Green Wire, 50 Light, 17' Long 20" Lead From Battery Pack to First Bulb - 4" Spacing Between Bulbs - 18' Long Weatherproof CaseWith Clamps - Timer Function: 6 Hours On and 18 Hours off Commercial Grade Non-Removable LED Bulbs - Runs on 3 "D" batteries (Not Included) If One Bulb Burns Out The Rest Remain Lit - For Indoor and Outdoor Use Will Operated For 2 Weeks Once Timer is Set of Batteries