The LH0049 Leviton 13662-SNP is a T8 tombstone fluorescent socket that is a dedicated T8, 16MM lamp center, miniature bi-pin, non-shunted, turn type with lamp lock, 660W-600V. The LH0049 Leviton 13662-SNP is UL and CSA, snap-in with no post mounted, bottom load, and COF white. Link