Spectrum Lumen Max series offers a series designed for high and open ceiling plans so popular today. We have designed this series for use in Retail, Industrial, Distribution, and Commercial (office) spaces. Lamping options include Compact Fluorescent, HID, Induction, and Linear (T-5/T-8). All fixtures are designed and manufacturered in our Fall River, MA (USA) factory. Fixtures are designed to maximize effeciency and output of specific lamps. We offer a wide variety of options for mounting, lenses, colors as well as custom capabilities. Spectrum Lighting Lumenmax the most efficient open ceiling lighting available today.