These Harbor Umbrella Lights brighten any outdoor evening. These electric umbrella lights are weather resistant and provide good light with 20 bulbs per rib (160 total). Use with your own patio umbrella. Includes multi-cord receptacle so you can plug in other items. The Harbor Lights are designed to fit on any octagonal umbrella and can be made to work on a market umbrella. Lights install in about an 30 minutes and do not interfere with closing the umbrella. Items included: umbrella lights, 5 replacement bulbs, multi-cord receptacle and 2 replacement fuses. This item is also UL Listed. Umbrella Not Included.