A warning light beacon having a base, a lens providing a dome over the base, and a circuit board extending upright from the base perpendicular to the base. The circuit board has two surfaces with mounted light sources, such as LEDs, providing a same or different colors of light. One or more light blocking elements, each preferably a non-operative electrical component, are mounted upon each of the surfaces, each between groups of one or more light sources, to dispose each of the groups to substantially illuminate a different one of a plurality of regions about 360 degrees of the lens. Sequential illumination of each of the regions along the 360 degrees of the lens by at least one light source associated with the region enables perception of rotating light outward via the lens. Such regions along the lens may also be illuminated simultaneously to provide solid-on or flashing patterns.