B50LP PHILIPS BODINE Specification grade; High lumen, low profile End-of-lamp-life compatible, used with most 17 - 215 W (2&rsquo; - 8&rsquo;) T8, T9, T10 or T12 fluorescent lamps without integral starters, including U-shaped, HO, VHO, AC ballast to convert new or existing fluorescent fixtures into unobtrusive emergency lighting.