Energy Focus Inc (Energy Focus) is primarily engaged in the design, development, manufacturing, marketing, and sale of energy-efficient lighting systems and controls. Its products include lighting controls; TLED; LED tubes; berth light fixtures; bypass LED tubes; vapor tight fixtures; canopy lights; flood and area lights; security lights; retrofit kit; led globe; and LED fixtures. The company also provides energy storage solutions, including solar inverters, battery packs, industrial and commercial energy storage systems, and energy storage containers. Energy Focus offers its products to healthcare; military and maritime; education; contractors and agencies; industrial; and commercial customers through channel partners and lighting agencies.

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Energy Focus has been actively involved in R&D initiatives to innovate both its technology and product offerings. It has developed differentiated products such as the RedCap, a patented emergency backup battery integrated TLED, and EnFocus, powerline control platform. The company has also launched the second generation of EnFocus powerline control switches and circadian rhythm adjustments. The company is also investing in smart lighting and wellness lighting research and development, as well as channel partnerships. The company's R&D unit focuses on understanding lighting technologies and LED lighting applications, developing, and providing high-quality, price-competitive LED lamps and related technologies, and focusing on proprietary and patent-pending technologies surrounding LED lighting. In FY2024, the company spent US$0.5 million on R&D, which as a percentage of revenue, stood at 10.8% and decreased 11% YoY.