50 LED Battery Operated Lights Blue 50 LED Blue Battery powered Christmas light string for holiday and special event lighting when there is no power supply. These super bright battery operated LED lights have 50 wide angle blue lights that run on 3 D batteries not included. Our 50 LED battery operated lights are built to last using a weatherproof battery case with clamps making these unit perfect for outdoor use. Each unit also comes with an optional timer function. Simply turn the timer on when you want the lights to come on. Once the timer is set the lights will come on at the same time every day and stay on for 6 hours lasting up to 2 weeks on a good set of batteries. Ideal for decorating where power is unavailable or simply getting rid of the extension cords. 50 Light Blue LED Set on Green Wire Weatherproof Case with Clamps Timer Function 6 Hours On and 18 Hours Off Set timer for same time every day Runs on 3 D batteries not included Commercial Grade Non-Removable LED Bulbs Will Operated for 2 week once timer is set 20" spacing between battery pack and first bulb 4" spacing between bulbs If one bulb burns out the rest remain lit For indoor and outdoor use Blue 5mm wide angle LED bulbs