I suggest a white shade cloth instead of black. > -----Original Message----- > From: pbs [mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of Jane McGary > Sent: Thursday, November 05, 2015 10:04 PM > To: Pacific Bulb Society > Subject: Re: [pbs] Growing under lights > > My new lamps are metal halide. I have them fairly high above the plants, but > I will take Kipp's advice and stretch a shade cloth between the light and the > plants. Many of the plants are young seedlings and thus more sensitive to > burning. > Jane McGary > > > On 11/5/2015 11:28 AM, Kipp McMichael wrote: > > Jane, > > > > I assume your new fixtures are a metal halide or high pressure sodium. > These are indeed strong lights and can burn even full sun-loving plants. I > would suggest shading with cloth or placing more sensitive plants outside the > "cone" of light directly beneath the fixtures. > > Just to note: If you lights are still fluorescents then they are unlikely to > burn anything unless the bulbs are within inches of the plants. > > -|<ipp > > > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/