Which of these statements is FALSE with respect to downlights?

The statement indicating that a downlight must be 3" away from combustible material is false. The actual requirement is more stringent; generally, downlights need to be rated for their distance from combustible materials, and the specific clearance can depend on the fixture's design and the manufacturer’s instructions. Many downlights, particularly those designed for use in insulated ceilings, have specific thermal protection ratings and installation guidelines that must be adhered to, which can dictate different distances from combustibles.

On the other hand, the other statements are true. An IC (Insulation Contact) housing can indeed be buried in thermal insulation because it is designed to operate safely in such applications by preventing overheating. The requirement that all downlights must be thermally protected ensures that they won’t overheat, which could otherwise lead to fire hazards. Additionally, the accessibility of splices is critical for maintenance and safety, ensuring that any electrical connections can be easily reached if repairs are needed. These factors contribute to safe installation practices for downlights in various environments.