Does the torchiere definition only apply to reflector bowls made of certain materials?
No. The torchiere definition does not distinguish between torchieres and floor lamps based on the material of the reflector bowl. However, the material the bowl is made of affects how much direct versus indirect lighting the bowl reflects which in part, determines whether the lamp is considered a torchiere. Manufacturers should consider the amount of emitted light that provides indirect illumination as discussed above.
