The Sunpark SL26T is a circline ballast with lampholders attached. It is for (1) FC8T9 (22W) + (1) FC12T9 (32W), (1) FC12T9 (32W) + (1) FC16T9 (40W), (1) FC8T9 (22W) + (1) FC 16T9 (40W) or (2) FC12T9 (32W). The Sunpark SL26T is a 120v ballast rapid start ballast. It is similar or equal to the ...