Blue Battery Operated Wide Angle Christmas String Lights Uses 3 AA batteries but not included On and off switch located on the back of battery pack Recommended for indoor use only Total string length measures 11 feet long From the holidays to Christmas 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 / white 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