A.L.P. Lighting Components, Inc., a global manufacturer of lighting components based in Niles, Ill., has acquired Spectrus, Inc., a supplier of plastic optical components based in Charlevoix, Mich. Spectrus is comprised of Lexalite, Genesta, and PSI brands. An ALP spokesman said the acquisition extends its product offerings, which currently includes plastic louvers, gasketed enclosures, steel fixture housings, aluminum louvers and reflectors, and adds engineering and design capabilities as well as manufacturing capacity.