Leviton 13351 - T8 or T12 - Turn-Type Lampholder - Medium Bi-Pin Socket - Non-Shunted - For Programmed Start Ballasts - Low Profile Low Profile Body Molded, white thermosetting urea Quickwire pressure terminals accept stranded No. 18 gauge, twisted and overtinned, or No. 18 solid or solder-dipped leads stripped 3/8". Unplated contacts are standard. Multiple terminal slots permit double connections at each contact.