Light shades and lighting systems that create a spectral effect when a lighting element is illuminated within the shade, and features that reflect light originating within the shade. Embodiments of the invention incorporate hollow body having a diffraction grating thereon and an internal cavity to retain one or more lighting elements, and in some instances, to also retain one or more lengths of conductor.

 
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< Light-emitting-diode lamp

> Motion-activated lamps

> Illumination obscurement device

~ 00543