Coir
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Does this light not conform to the usual 50W/ft² rule? I plan on using one in a small space but it probably won't work if these run at a lower density...
Just depends on the size and quality of product you want. Ever grown tomatoes in the shade outdoors? Don't get as good of production as with full sun.Does this light not conform to the usual 50W/ft² rule? I plan on using one in a small space but it probably won't work if these run at a lower density...
These will veg a 5x5 area just fine if you're not growing trees. For flowering an area that size, 2 would be ideal as long as you can get them up high enough above the canopy.
I think you might be misunderstanding me - I plan on using 315W to bloom in a small cabinet at appx. 70W/ft² - That's a bit higher than most recommend, but my ventilation is on point so I'm not worried. However, if these CDLs are meant to operate at a lower light density (a 315W covering 5x5 is just over 12.5W/ft²), then in my proposed application it's too much.
I guess my question is - Is it ok to flower under CDLs at the standard 50W/ft², or is that too much light?
I've never heard of a light being "meant to operate at a lower light density". You use as much light as you need for the application, depending on veg/flower and whatever other constraints or preferences you have. If you're using this light for veg, then it can cover around 3x3 or 4x4 max. If using for flower, I would use it to cover 3x3 max, and preferably 2x3 if you want 50w/ft^2.
Just make sure your ventilation is on point like you said, because these babies throw down heat. If you're in a cabinet then I think a cool tube would do much better.
Unless you buy a separate ballast and socket for this light, I don't think you'll be able to run it in a cool tube. The LEC 315 from sunlight supply comes as a complete fixture with a vertical mounted bulb. I had it hanging next to both an air cooled 400w HPS and a 324w 6 bulb T5, and the 315 cmh absolutely put down more heat. Part of it is probably the design of the hood, having no air cooling and being very highly reflective. But the plants got stressed if they got to within a foot of the light, where they can grow right up and almost touch the T5 without any problem. The only thing this light does better than an HPS is spectrum, but if you're growing in a cabinet you have more to worry about, and the spectrum of an HPS will be perfectly fine as it is with the majority of growers. I think a 400w HPS will put off a little more light than the 315 as well. If you can make it work, then more power to you. This bulb would be awesome in a cool tube.
Sounds like you have a good plan. I'm sure you'll get great results with this lamp in your space.
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