Abstract: An ultraviolet lamp. There is a lamp housing; a plurality of rows of ultraviolet (UV) light emitters, coupled to the housing and disposed linearly and longitudinally along a single face of the lamp housing; wherein each row includes an array of clusters of UV light emitters, each cluster including a diverse set of UV light emitters, wherein the light emitters are diverse in the frequency spectrum of light emission between at least two of the emitters in the cluster; wherein the clusters of each row have consistent light emitter placement configuration with respect to clusters within the same row; and wherein the clusters of a first row have a different configuration than the clusters of a second row; and a power source coupled to the lamp housing opposite the single face and in functional communication with the UV light emitters.