Energy Focus designs and sells LED lighting products for two markets: commercial buildings and military maritime vessels. On the commercial side, Energy Focus sells retrofit LED tubes (including its RedCap emergency backup LED tube, which includes a built-in battery backup), downlights, high-bay and low-bay fixtures, and dock lights to hospitals, schools, warehouses, and retail facilities. Energy Focus reaches these customers through direct sales, external sales agencies, and energy service companies. On the military maritime side, Energy Focus sells retrofit LEDs and military-grade fixtures designed for U.S. Navy and allied foreign navy ships, primarily through distributors and prime contractors. Energy Focus is a very small company — just 8 full-time employees — headquartered in Solon, Ohio, where it also does final assembly, testing, and quality control. Manufacturing is a mix of in-house assembly and outsourcing to suppliers in the U.S., Malaysia, and Taiwan. The company is attempting to diversify beyond LED lighting into adjacent areas, including uninterruptible power supplies for AI data centers, battery-based energy storage systems, and next-generation GaN power conversion products, though all of these efforts are early-stage. Energy Focus is also evaluating expansion into Asia, and opened a Taipei office in 2023 to support Asia-focused business development.