I just spoke with gavita about their uv bar addition, it’s meant to run 12hrs with the main light.UV-A and UV-B must be timer controlled, they can't be run non stop. If Mars can figure out how to incorporate the UV cycles to come on for 15 minute intervals every 12 hours of light or so that would be fantastic.
I believe (I could be wrong) that too much UV light is detrimental to plant cellular health. Small amounts, in short time periods, is quite beneficial.
@damien50 thinks because it’s only 30w it is low enough to do so.
the sun runs uv all day and weed grows outside.
I don’t understand everything but that’s where I’m at on uv
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