Plessey Semiconductors Ltd., which holds the global exclusive license to sell horticultural lighting technology from PhytoLux Ltd., has appointed Maarten Klein head agronomist. From left, Michael LeGoff, CEO of Plessey, Maarten Klein and Steve Edwards inspecting a trial using PhytoLux grow lights in Holland. Courtesy of Plessey. Klein will provide specialist expertise for Plessey’s horticulture products, bringing expertise in the use of LED lighting for growing commercial crops. He was formerly the research director at Delphy in Wageningen, the Netherlands.