The light assembly is designed for use with an integral steam emitter or as an add-on with a steamhead in a pre-existing steambath installation. The assembly includes a part for engaging the end of the steam outlet pipe of a steam generator. A ring-shaped fixture carrying multiple LEDs is mounted on the pipe engaging part. A light transmissive lens is aligned with the light source fixture and has a light emitting edge. The lens has a central opening through which steam from the steam outlet pipe can pass. When the assembly is not used with a pre-existing steamhead, a steam emitter is provided with a steam inlet adapted to extend through the lens opening. The steam emitter has a hemispherical front surface with a steam outlet port located in a recess. The light source can include LEDs of different colors.