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Lights (was Re: Hello out there?????)

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> 
> Hi! My email has been strangely quiet. Did I inadverdently unsubscribe  myself , get kicked off for being too gabby ,or are you all down with the flu? I am still waiting to hear if I can use a halide light( use in aquariums for tropical fish) to light a very small shed or closet as an 
alternative to grow lights. Where have you all been? Did you fall alseep reading your seed catalogs?.........-Teri 
> 

Teri:

This has been said quite a few times on the list but as long as the 
light is physically close to the plants it shouldn't make too much of 
a difference what type of light you use.  I think those halide lights 
have a funny spectrum, but so do fluorescents.  Basically the best 
approximation to sunlight that you can get is a regular tungsten 
bulb (incandescent) with a blue filter on it.  They sell these filters in 
optical shops like Edmund Scientific.  The thing about incandecents 
is that they are hot and come in bulbs not tubes so it takes more of 
them to get an even distribution of light.  If you do want to use a 
point source of light for all of your plants, I think someone else 
mentioned it, but rotate your trays around so they see the light from 
all different angles, that way you won't have crooked plants leaning 
to one side.  Also remember, again also mentioned, is that the light 
intensity falls off as a square of the distance, that means if your 
neighbor's plants have the same light source 1 inch above the plants 
and you have yours 16 inches above the plants that your neighbor 
is supplying 16*16 or 256 times more light to the plants.  So believe 
everyone when they say, keep the light close to the plants.

I hope that this helps

-Ron
menoldre@va.prestige.net
USDA Zone 7a


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