JDR led house lights bulbs, E11 LED, E12 LED, E14 LED, E17 LED or E27 Base LED light bulbs. E26 and E27 are standard medium Edison socket, They has same diameter screw in 26.38mm, Just the length of socket are different, The length of E26 is 26mm, The lenght of E27 is 27.5mm,  They are the normal ubiquitous bulb socket in the world. The E27 Base can replace E26 Base. The E14 is small screw base, The diameter of screw is 13.89mm, typically found on chandeliers and sconces. The E11 is Mini-Can (Miniature Candelabra)screw Base, The diameter of screw is 11mm.