Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Furnishings (hierarchy name)
5. furnishings (works)
6. [furnishings by form or function]
7. lighting devices
8. [lighting devices by form]
9. lamps (lighting devices)
10. [lamps by method of illumination]

Anotations

Scope note:

Ornamental electric lamps that consist of a transparent chamber housing a liquid, usually water, in which brightly colored blobs of wax are suspended. The wax moves and changes shape due to heat supplied by an electric bulb.