Northlight 20-Count 6.25-ft Yellow LED Battery-Operated Indoor Christmas String Lights

Product Features:?Color: amber bulbs/green wire?Number of bulbs on string: 20?Bulb size: concave wide angle nub (mini bulb)?Spacing between each bulb: 4"?Lighted length: 6.25'?Total length: 8'??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)?On/off switch located on back of battery pack?Cannot connect multiple sets together??Material(s): plastic bulbs/wire