This is a two-outlet light socket adapter that allows you to use your light bulb socket as a plug outlet in addition to handling your lighting needs. This extender has an E26 base that works with LED, CFL and standard household light bulbs. The additional two electrical outlet receptacles are an efficient way to add more versatility to your space. The convenient pull chain makes it easy to set up your area for temporary or long-term use. This product is UL Listed.