Re: Daylength

>From: krombhol at felix_teclink.net (Paul Krombholz)
>Date: Fri, 29 Nov 1996 18:55:00 -0500
>Subject: Re: Daylength 

<snip> the interesting stuff about phytochromes

 Does anyone out there know
>where I can get a relatively cheap filter that lets mostly far red light
>(730) through?

I don't know about a filter but I'm pretty sure Graingers sells a small 13W
PC red light you could quickly wire up a ballast for.  Same with using the
little Mini-Might fixtures (though they are tremendously expensive).