I have reading up on adding UVB to the spectrum for higher levels. Has anyone ever used them in their grows?
I just got a dragon aquarium uvb bulb. Just wondering if anyone has tried it and to what success. I already have too much invested in platinum to get a new big light.
I have 2 p300 now btw… Most of the posts are saying this is the amount of time to run it. I am just looking for ideas.
The 2 lights I am running on are in beast mode. I’ve been growing for 2 months and I already have 2 so I’m well on the way to bigger and better things if needed. Do you have have a platinum or comparable?
I’m just looking for supplemental light for the full spectrum I am running not an entire new system. Just a side light of UVb and if anyone is running them is all I am wondering…
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I was about to ask this same question about UV lighting as my own post but instead i will add my 2 cents here…
In my research about lighting I came across the following…
"Because plants have evolved over thousands of years using sunlight, their preferred spectrum for growing mimics the spectrum of sunlight, also known as full-spectrum light. Full-spectrum light includes wavelengths between 380 and 700 nanometers (nm). Nanometers measure wavelengths of light in billionths of a meter, the smaller the number, the shorter the wavelength. As stated above, plants have evolved to grow best with light within this spectrum, specifically light between 400 and 700nm; however, Cannabis also uses some Ultra-Violet (UV) components below 400nm for increased essential oil production and some Near Infra-Red (NIR) wavelengths above 700nm to help the plant compete with neighboring plants that may be shading it from the light source."
So i guess the answer is to raise THC / CBD potency?
Full article here http://surna.com/lumens-vs-micromoles/
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Im not sure why its not in the forefront. Seems like more should and would be doing this. I’m not gonna wait I’m doing it now and I have a side by side to compare it to. Time will tell.
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Do you know why they increase essential oils?
It burns the plant so it makes some sun cream to protect it self.
I just wanted to add that and agree adding it helps thats why I added UV to my light
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How long do you run yours?
When the lights are on UV is on 
lazy I know but I like simple.
I did read about putting the plants to sleep quicker using UV just before lights out and being able to run the lights for 14+ hours but still have the same effect of 12/12.
Does Uvb run hotter than CFL ? In reg store hard to find higher than 23watts lot of low watt LED bulbs guess they’re moving on from cfls cause of the Mercury (I think) that’s inside them. As I battle heat in the southern summer with leds I couldn’t imagine trying to regulate HID here
I’m not sure. I run mine while at work. They aren’t very kind on the eyes. I run from 10-2.
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Just order a 10.0 UVB CFL bulb (on Wish @careg lol)
My question now tho, that’s the difference between the 5.0 and the 10.0?
Just the size, like wattage? Or does one put out more of something?
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I see that too and have been wondering. If I see a difference I will use those as all my supplement and try both.
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How did you find the added UV I am running LEC 315w which has pretty decent UV ratings just wondering if you found it of benefit?