SOLARMAX HPS 400W SUPERReduced lamp sizes fit most horticultural lighting fixturesCustom tailored spectral distributionsHighest outputAll SolarMax lamps carry a full ONE YEAR WARRANTY A maturing plant has dramatically different needs than a younger plant. As plants approach maturity they require less Blue Light and depend more upon radiation from the Red portion of the spectrum between 610 nm 720 nm. Now is the time to utilize the superior Red Light output of the SolarMax