The Optos sconce uses two separate optical-effect lenses to produce interesting displays of up/downlight. The aluminum body allows for 359-degree rotation and holds the lenses with clips. Besa Lighting lens is a transparent molded borosilicate glass, with a parabolic shape designed to carefully refract the light rays in the light source. The result is an edgy display that exudes an energetic mood. When lit this gives off a light that is functional and vibrant. This handcrafted glass uses a process where every glass is consistently produced using a mold, keeping variations to a minimum. These stylish and functional luminaries are offered in a beautiful finish.