Radionic IS2813TP Instant Start Electronic Ballast: Use with (1) F13T5 & (1) F8TT5 Radionic Electronic ballast. Use with (1) F13T5 and (1) F8T5 Fluorescent Lamp With Lead Wires Attached Instant Start, Class P, Power Factor Corrected 5 Year Manufacturer's Warranty 120VAC, 50/60Hz, CUL619L