Hortilux Blue Daylight MH Lamps revolutionize lighting for plant growth! Designed to provide a fully balanced light spectrum that replicates natural sunlight. Exclusive Iwasaki (EYE) chemistry provides levels of red, blue and green spectral energy to optimize plant growth and yield. Designed to provide a fully balanced light spectrum that replicates natural sunlight. Used professionally in plant physiological research and biotechnology/pharmacology industries. To prolong the life of the bulb do not handle with bare hands. If you need assistance in determining if this bulb is right for your set up give us a call and we will be happy to assist you!