SWITCHABLE LUMEN/CCT TECHNOLOGY: Allows for easy field-adjustable lighting output with switch located on side of driver. 3900/4800/5000 lumens. 3500/400/5000K. Up to 153 lumens per watt. DURABLE DESIGN: Constructed from steel housing with end caps. Includes a frosted acrylic lens for superior efficiency and resistance to UV aging. Certifications include UL 1598, LM79, LM80, TM21, and damp location listed. LONG-LASTING: 54,000-hour LEDs at L70 for reduced maintenance. Universal voltage 120-277V. 0-10V dimming to 10%. EASY INSTALLATION: Enjoy the convenience of a quick and easy installation. Can be installed in a wide range of surface mount and wall applications. 5-YEAR WARRANTY: We guarantee your complete satisfaction with your purchase and offer professional after-sales customer service support. Make your purchase today to breathe new life in your commercial lighting experience!