Excellent research paper on LED's for greenhouse use. Jul 10, 2014 0:32:58 GMT coline likes this Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by av8tor1 on Jul 10, 2014 0:32:58 GMT arxiv.org/ftp/arxiv/papers/1406/1406.3016.pdfenjoy,Butch