Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. furnishings components
7. lighting device components
8. light bulbs

Anotations

Scope note:

Fluorescent lamps, available in two types, with ultraviolet emitting phosphors. Used in the ultraviolet investigation of cultural materials and in many scientific experiments. Filtered black light blue bulbs produce a dark violet glow with phosphors releasing near 404.7 nm; non-filtered black light bulbs emit a light blue light with phosphors releasing near 360 nm.