The LH0981 Leviton 13661-SWP is a G13 medium bipin lampholder / socket / tombstone for T8 or T12 LED or fluorescent tubular lamps. It is non-shunted and has a locator post / stop / pin. The Leviton 13661-SWP is rotary locking which allows the lamp to be inserted and rotated to lock it in place. It ...