Spread a little luck of the Irish with these novelty shamrock string lights! They feature 20 mini green shamrocks on a clear wire with a battery pack. The battery pack has an on/off switch, and the best part is that if one bulb goes out the rest stay lit. Product features: color: green bulbs / clear wire. Green shamrock-shaped light covers. Number of bulbs on string: 20. Bulb size: concave wide angle. Spacing between each bulb: 4.5". Lighted length: 7'. Total length: 7.8'. 20" lead cord. Additional product features: led lights use 90% less energy. Cool to the touch. Suitable for indoor use only. Requires (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. Dimensions: 7'l x 1.25"h. Material(s): plastic/wire