The LH0227 Leviton 26720-400 is a 13w 2 pin GX23 or GX23-2 base CFL socket. It has 4 hole vertical mount lampholder. The LH0227 Leviton 26720-400 can be used with either CFL or LED lamps with a GX23 or GX23-2 base. It is similar or equal to the American DeRosa D2713, Edwin Gaynor ...