This TITANIUM LED SERIES PL H lamp has been designed and engineered for demanding commercial applications. This plug and play direct replacement lamp is compatible with 13W, 18W, 26W, 32W and 42W electronic programmed start ballasts, requiring no rewiring during installation. This lamp features ballast output control technology which allows for high performance on lower powered ballasts. The base of the lamp can be rotated 310 to fit any socket configuration. Simply install in your existing fixture and turn ON the savings.