1. The business is mainly focused on the United States. Its core business is selling science-based blue-light blocking glasses, using a three-level system to adjust light exposure during the day, evening, and before sleep. 2. In the health / medical sector, it is a well-known brand in the blue-light protection segment, with competitors including Gunnar and Felix Gray. 3. The brand terms used on the official website are "TrueDark" and "TrueDark glasses".