Puck doubles up with a base engineered to contain the bulb, so all that’s inside the stacked glass spheres is uninterrupted light. While precise, each of the diffusers is mold-blown and thus unique. The surface fixture comes in a convenient plug-in version as well as a hardwired model that works for both walls and ceilings. The steel mounting plate comes in painted statement colors or choose solid brass, either brushed or patinated.