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Re: Seeds Under Lights Versus Greenhouse

Amy Rupp wrote:
> 
> > The light source (spectrum) is very important. Plant responses are
> > controlled by the red-far red end of the light spectrum (this is the
> > phytochrome bit).  They also respond at very low light levels, but you need
> > the right spectrum, ie the red end. You don't need anything fancy, ordinary
> > incandescent bulbs will do the job. Flourescent tubes will not. So if you
> > are looking at extending photoperiod, all you need are a few incandescent
> > bulbs, nothing fancy.
> 
> Even if you use a so-called "warm" fluorescent tube?  I don't know
> of any incandescent bulbs that fit in a fluorescent ballast (typical
> grow light setup).
> 
> --
> Amy Moseley Rupp
> amyr@austx.tandem.com, Austin, TX, USDA zone 8b, Sunset zone 30
> *or* amyr@mpd.tandem.com
> Jill O. *Trades, Mistress O. {}
Hi:
 
   It depends on the fixture and the wiring ability of the person doing
the modifying. Sometimes there is room between the two tubes in the
center to install a socket for incandescent. I,ve done it, the socket
needs to be wired in after the fixtures switch if there is one and
before the ballast. for a 4 ft bulb, place them 10-12 inches from the
end. This may not meet electrical code!
                    Jerry May zone 8, av. min 15oF,max95of
,
References:
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