The LH1002 is a E39 / E40 mogul base to E26 / E27 medium base socket adapter / enlarger. It allows an E39 / E40 mogul base LED, incandescent or HID lamp to be used in an E26 / E27 medium base socket. It is similar or equal to the Generic E39B-E26, JackyLED 72639, LumeGen LG-AD-E26-E39-INDV or the ...