From the holidays to holiday parties or a casual night with friends on the back porch, string lights add a playful touch. Turn any space into a glimmering paradise with this must-have luminaries! These LED lights are sure to be an exciting addition to your holiday decor. Product Features: Color: blue bulbs / green wire Number of bulbs on string: 20 Bulb size: concave wide angle Spacing between each bulb: 6" Lighted string length: 9.5' Total string length: 11' 17" lead cord Additional Product Features: LED lights use 90% less energy Cool to the touch Requires 3 "AA" size batteries (not included) If one bulb burns out, the rest will stay lit Comes with non-replaceable bulbs On/off switch located on the back of battery pack Cannot connect multiple sets together For indoor use only