An improved light emitting device, especially a phosphor-converted white light device, wherein the light extraction efficiency and the color temperature distribution uniformity are improved by the introduction of both nanoparticles and light scattering particles proximate to the light source. The system is characterized in that, upon receiving the initiation input, the BIST engine drives the BIST structure to test connections and functions of the PLA. Also described and shown are example crankcase ventilation components, parts for use with a preferred media described and characterized. One or more bands are joined to and extend between the base portion and the end portion.