- Designed after the classic 1950’s bubble light, these vintage inspired lights feature red, blue and green bubbling center bulbs. These lights will bring back cherished memories. Made from glass and plastic, these lights come as a set of 7 per string. If one or more bulbs burn out, others stay lighted. Made from green wire and red and green plastic. Connect up to 8 sets. Indoor/Outdoor UL certified. Dimensions: Cord: 11′, Lighted Length: 9″, Long Bulb: 1.5″W x5.5″H.