Which of these statements is FALSE with respect to lighting closets?

The statement concerning fluorescent sources being required to be enclosed in lighting closets is inaccurate. In general, fluorescent lighting does not mandate enclosure in the same manner as incandescent sources do. Incandescent fixtures present higher risks due to the heat they generate, which poses a fire hazard in close proximity to combustible materials typically found in closets or storage areas. Thus, to mitigate this risk, it is necessary to enclose them when installed in such locations.

On the other hand, fluorescent lighting technology operates at lower temperatures and does not carry the same level of hazard associated with heat generation. This allows for more flexible installation requirements concerning enclosure. The requirements for spacing, as mentioned in other statements regarding recessed and surface incandescent fixtures, are based on fire safety codes that pertain to the operation and hazards posed by those fixtures in relation to items stored in closets.