Beaver Creek, Yukon
The high-watt fluorescents would give you more vertical space and are more appropriate to the situation. You will need a space of about six inches between the light and the tops of the plants. If the light has to be distributed more evenly, use 50-watt lamps rather than 100-watt bulbs. Try to give the garden about 50 watts of light per square foot.
Warm-white compact fluorescents emit about half the light per watt as a high pressure sodium. The fluorescent light has a higher percentage of red and orange light than the light HPS lamps emit. Plants use red light most efficiently for photosynthesis.
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