The LH0370 HH Fluorescent 1-1700 is a shunted tombstone / lampholder / socket. It is rotary locking for a secure fit. The HH Fluorescent 1-1700 is for T8 or T12 fluorescent tubular lamps. It has flexible wings for easy installation and a stop / post for positioning.
Link to T8,T10,T12,lamps that fit this socket