Celebrate St. Patrick's Day with mini LED shamrock string lights. Display on your mantle or window frame to show your Irish pride this holiday. The LED lights come equipped with an automatic timer function with 6 hours on and 18 hours off. Easy to use on/off switch located on back of battery pack. Batteries not included. Details: Green bulb colorGreen wireGreen shamrock-shaped light covers Bulb size: concave wide angleNumber of bulbs on string: 20 Spacing between each bulb: 3.5" Lighted length: 7 ft./total length: 7.8 ft. (lead cord: 10") For indoor use onlyRequires 3 "AA" size batteries (not included) Automatic timer function with 6 hours on and 18 hours off Non-replaceable bulbs On/off switch located on back of battery pack Cannot connect multiple sets together