The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.
The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.
Direct down lighting with 2-by-4 or 2-by-2 fluorescent fixtures are common in office buildings and are usually recessed into a dropped ceiling. The pattern of light distribution from a direct fixture is determined by the reflectors, lenses, or diffusers it may use.