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"Alan Gould" wrote in message ... In article , Franz Heymann writes Who is prepared to post some advice on lighting requirements? Only to point out that you are proposing to substitute daylight, which is a fairly complex element, especially where plants are concerned. Daylight has an extremely well known spectrum. It is also known quite exactly which two wavelength regions of the spectrum are required for photosynthesis. There are lamps which produce entirely acceptable spectra for plant growth. In fact some of the fluorescent lamps are better than sunlight, since they produce a better active light to heat ratio. My problem is essentially to find out quantitatively how many lamps, of what power, at what distance from the plants, to use. You may also need to keep an eye on ambient temperature and humidity, again plants are more sensitive to those things than garages usually demand. I agree. I intend to build a small enclosure of a few foot cube inside the garage. Franz |
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