Philips Ballast Bypass LED tubes replace T8 and T12 fluorescent tubes and are designed to be wired directly to the mains voltage to bypass the ballast. They are perfect for retail spaces, offices, schools, hospitals, residential applications and more. By eliminating the need for a ballast, these LED tubes require no ballast-related maintenance. Plus, the long lifespan reduces the hassle of changing burned out tubes in hard to reach areas. Philips LED tubes also meet EyeComfort criteria, a standard developed to measure our products against a set of key factors that can impact the comfort of your eyes.