ICF-2S26-H1-LD Advance Ballast
 ICF-2S26-H1-LD120 to 277 volt runs-(2) 26w triple(2) 26w quad(1) 26w triple(1) 26w quad (1) 32w triple(1) 42w triple(2) 21w 2d(2) 24/27 long twin tubeAdvance BrandLength: 4.98 inchesHeight: 1.0 inch  Width: 2.4 inchesBallast Lamp Starting Mode: Programmed Start