A 20-foot green cord with 10 sockets spaced 24 inches apart. Lanterns and light bulbs sold separately. For use with 7 watt light bulbs, 120 or 130 volt, with an Intermediate Screw (E17) base, commonly found under the following types: G40, G50, or C9. Some of these bulbs are torpedo-shaped and some are globe-shaped. Please note that the globe shaped bulbs will fit better with our Premium Lanterns. Do not plug more than 100 consecutive feet together. For use with lanterns up to 20 inches in diameter.