To improve visibility both at a short distance and at a long distance.

This light scattering warning light 1 is composed by housing, in a translucent globe 2, irradiation units 6 and 8 having a plurality of light emitting diodes 11, 11, ..., 12, 12, ... and boards 13 and 29 with the plurality of light emitting diodes arranged thereon. The irradiation units are provided with: light condensing function parts 17, 17, ..., 32, 32, ... having condensing lenses 20, 20, ..., 34, 34, ... for condensing light emitted from the light emitting diodes; and diffusion function parts 19, 19, ..., 33, 33, ... having diffusion reflectors 22, 22, ..., 36, 36, ... for reflecting and diffusing light emitted from the light emitting diodes.