The Sunpark LC12012T is a one light electronic ballast. It is for (1) FC8T9 (22w) circline lamp and has the lampholder / socket attached. The Sunpark LC12012T can replace the American ELEX HD3222-120A, Howard Industries M1-22PHC-120, Iota Ci12-22WFSSP, Interglobal IG13-20EL/T9, Keystone ...