6pcs, work for both E26/E27 Socket, and bulbs,Easy to screw it into an existing socket, extend your current E26 screw mount / fixture
increase light from a recessed light fixture,Extends bulb base by 2.7 inches, Easy to Install Than Replacing Your Original Lighting Fixtures
to extend CFL or LED bulbs in CAN light down so you get maximum light
replace floodlights in recessed fixtures with shorter LED bulbs to eliminate shadowing by recess can.
All voltage workable: 100-240V AC, Warranty: 1 Year