APL Engineered Materials specializes in providing ultra-pure materials for discharge lamp manufacturing. Its technology is applied to salts and precision metal pieces for metal halide lamps, amalgams for high-pressure sodium lamps and zinc-mercury amalgams for fluorescent lamps. Founded in 1944, APL Engineered Materials also produces barium peroxide getters for extending lamp life. It is a part of Advanced Lighting Technologies, which owns and operates Venture Lighting International, HIDirect, DSI and Auer Lighting.