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I successfully grew tomatoes from seed this last January, but next time I want them budding before I get them in the ground (I only got tomatoes starting to fruit late august for all of the cultivers).
I have 1440 watts from 4 CFLs (105 watt = 400 watt each plus one 55 watt =240 watt) in a 6.5'x4.5' closet. Color is full spectrum daylight 6500 K. Initial Lumens is 18,600 all together.
I have read that people have used high pressure sodium lights (but I can only find marijuana references concerning light for flowering!). These have a color temp of 2100 K and a 1000 watt light gives 140,000 Lumens. But I don't want to use these because they would be so expensive to run! Unless they could be used for only 2-3 weeks to promote flowering, then I might use them.
Right now I'm paying $5.50 to $10 per month to run my CFLs. If I was to switch to the High Pressure Sodium it would be $17.50 to $31.7 per month. I might as well just buy the stupid plants!
Anyways, so my question is, can I use the same watts and use CFLs at 2700 K instead? (Warm white and 22,200 Lumens all together). Has anyone tried this?
This message was edited Oct 31, 2009 2:27 PM
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