T8 & T5 LINEAR FLUORESCENT HIGH BAY FIXTURES:Designed as energy efficient replacements for HID and fluorescent fixtures used in new and retrofit commercial projects, MaxLite's line of T8 and T5 HighBay fixtures deliver high efficiency and are designed with a universal voltage ballast. Available in four- and six-lamp configurations, the T8 and T5 HighBay fixtures operate on 120- and 277-volt systems.The T5 models, preinstalled with motion sensors, can be programmed to a variety of settings, allowing for customization to meet the unique application needs of the job site. This feature includes variations for time delays to switch the fixtures on and off. The fixtures with motion sensor will be shipped fully wired as bi-level. These fixtures were selected as an Editor's Choice from Commercial Building Products magazine and are backed by MaxLite's five year limited warranty.FEATURES:• High efficiency, normal ballast factor standard• High ballast factor available for T8 fixtures• Universal voltage 120 through 277 volt• Quick connects for easy installation and maintenance• Battery backup optional• Hinged ballast door• Motion sensor optional• Step down transformer optional for 480/277 volt• Knockouts on each end• Preinstalled “V” hook for mountingCONSTRUCTION:Housing: 22 gauge die-formed galvanized steel housing, with post-painted white baked on enamelBallast Access: Hinged ballast door for easy access to the ballastReflector: 87 percent reflectance reflector standard; 95 percent reflectance reflector available