That's cool, 250W sounds like a good size, it's better to spread it out with multiple lights instead of one massive 500Wer.
Also, 660nm "dominate" is most likely a BAD idea. It sounds like a good idea on the spectrum because of the chlorophyll A response but unfortunately, the deep red/red ratio is used by plants to figure out if they are getting direct light, or are under the canopy. Too much deep red and the plants will think they are underneath and will stretch to get out... I certainly wouldn't pay more for it, not until I see the non-stretched results.
They are still working it out, hopefully someone will get it right.
I think the prycon is made in the usa.
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