The LH1152 HH Fluorescent 1326RW-5 is a "disconnect" lampholder / socket / tombstone. It is for fluorescent ballasts that require a disconnect socket. The LH1152 HH Fluorescent 1326RW-5 is for G13 medium bipin base fluorescent lamps and has a screw mount..
Link to T8,T10,T12,lamps that fit this socket