Abstract: A projection lamp (10) for the projection of colored light effects includes a light source (18) and a transparent container (12) which is arranged in the beam path of the light source (18) and which is filled with an emulsion (26) of differently colored emulsion components (28,30), the container (12) being configured as an open, arched dish, the light source (18) being arranged below or above the dish (12) in order to project the dish content on a projection area, and the projection lamp further includes an exciter (40) for stirring and mixing the emulsion (26).