How does DOE distinguish between a torchiere floor lamp that falls under the EPCA energy conservation standard and a non-torchiere-style floor lamp?
Whether or not a fixture is a torchiere depends in part on the amount of emitted light that provides indirect versus direct illumination. EPCA defines a torchiere as: [A] portable electric lamp with a reflector bowl that directs light upward to give indirect illumination. (42 U.S.C. 6292(42)) DOE incorporated this definition into its regulations at 10 CFR 430.32(t). EPCA does not provide a definition of “indirect illumination,” nor is this term defined in the Code of Federal Regulations. In evaluating whether a light fixture with a reflector bowl that directs light upwards provides indirect illumination, and therefore is a torchiere, DOE would consider the term “indirect illumination” in the way that term is understood by the lighting industry. For example, DOE notes that The Illuminating Engineering Society of North America (IESNA) has published a lighting classification system based on the proportion of upward and downward light.
