Compatible with MaxLite internal driver LED T8 replacement lamps, Lamp Ready series enables installers to avoid bypassing ballast and adopt LED technology while keeping UL-listing of product intact. New construction housing is UL-listed for LED replacements lamps that do not need a ballast. All fixtures – Vapor Tight (2- and 3-lamp), Utility Strip (1- and 2-lamp), and Linear Highbay (4-, 6-, and 8-lamp) – come pre-wired for contractor-ready installation.