Set of 20 Battery Operated LED Christmas Lights Item #24372711 Features: Color: green bulbs / white wire Number of bulbs on string: 20 Bulb size: concave wide angle nub (mini bulb) Spacing between each bulb: 4 inches Lighted string length: 6.25 feet Total string length: 8 feet Additional product features: Uses 90% less energy Super bright bulbs guaranteed to light Cool to touch non-glass bulbs UL listed for indoor use only Straight line construction Non-replaceable bulbs Requires 3 "AA" size batteries (not included) Standard batteries last approximately 72 hours before they need to be replaced - bulbs themselves will last tens of thousands of hours On/off switch located on back of battery pack Cannot connect multiple sets together Material(s): plastic bulbs/wire Type: Lights Color: Green