Let this light set of clear glitter bubble lights make your Christmas lights the talk of the holidays. The 7 diamond-shaped and faceted candelabra base bulbs are spaced 20 inches apart on 11.5 feet of green wire. Their warm light is created by the incandescent bulb, which also generates the heat to bubble the liquid within the frosted tube. A light tap will get any slow starters going. For over 70 years, this novel invention has graced Christmas trees, garlands, and centerpieces. UL listed for indoor/outdoor use, eight sets can be safely connected with the male to female connections.