Intended use: The TWR1 LED combines traditional wall pack design with high-output LEDs to provide an energy efficient, low maintenance LED wall pack suitable for replacing up to 320W MH fixtures. The traditional shape helps maintain building aesthetics when replacing only a portion of your building’s wall packs. TWR1 LED is ideal for outdoor applications such as carports, loading areas, driveways and parking areas. Construction: Rugged cast-aluminum housing with bronze polyester powder paint for lasting durability. Door is hinged on the side so door swings out of the way during installation and service. Castings are sealed with a one-piece gasket to inhibit the entrance of external contaminants. MVOLT driver operates on any line voltage from 120-277V (50/60Hz). 6kV surge protection. Rated for outdoor installations, -40ºC minimum ambient. Optics: High-performance LEDs maintain up to 87% of light output at 100,000 hours of service life (L87/100,000 hours). Prismatic glass lens designed for superior lighting distribution, uniformity and fixture spacing. See Lighting Facts label and photometry reports for specific fixture performance. Installation: Designed for wall mounting above four feet from ground. Housing is configured for mounting directly over a standard 4” outlet box or for surface wiring via any of three convenient 1/2” threaded conduit entry hubs. Listings: UL Listed to U.S. and Canadian safety standards for wet locations. Tested in accordance with IESNA LM-79 and LM-80 standards.