Specially encased and potted in fluorescent ballast-type cans and utilizing Class A asphalt insulating materials to minimize ballast noise, Advances line of fluorescent can (F-Can) ballasts for high intensity discharge (HID) lamps (including metal halide and high pressure sodium models) are optimal in a variety of commercial, retail, and institutional applications. Advances F-Can ballasts are ideal for downlighting and indirect lighting opportunities within offices, schools, and retail stores as well as in noise-sensitive areas such as libraries. NP with end leads.