Merlin34
Well-Known Member
Ballasts are on the hoods. Fresh transplants go in the trays. No blue mats, hand watered.
Colorado
50000 square feet. Colorado Legal rec grow
- Thread starter Merlin34
- Start date
Colorado
DesertGrow89
Well-Known Member
Why is CRI important? Ive googled this and couldnt find much information. Eye hortilux posted an article stating why CRI is irrelevant. Thanks for sharing your operation with us
Merlin34
Well-Known Member
Interesting that Hortilux says that. One of their selling points of their Blue Eye bulb is the high CRI level. Think of CRI as a measure of complete spectrum. Sunlight being a CRI of 100. So, the closer the CRI is to 100 the closer it is to natural sunlight. HPS is typically around mid 40s, a total lack of much of the spectrum. That being said there's lots of ways to measure light. This is just one, not the end all be all.
Colorado
grapefruitmarmalade
Well-Known Member
I use 80 CRI HID bulbs and planning on changing to the 90 CRI CMH.
Eye Hortilux article was probably talking about PAR (micro moles). Yellow-orange light will produce more raw PAR, also our vision is more sensitive to that spectrum that's why HPS is used for street lighting, as well as for the efficiency. A higher CRI lamp of the same wattage will probably make less PAR light, but happier plants!
This is just as far as my brain can comprehend... I might be wrong so don't quote me on that!!
DesertGrow89
Well-Known Member
Yeah I found it kind of odd.
"Do your plants care about CRI? Only if they are buying carpet, shirts, or cars. Some horticulture lighting brands publish the CRI values. However, CRI value has little to do with lamp spectrum or its ability to grow plants."
http://www.eyehortilux.com/education-room/understanding-cri.aspx#sthash.1x9GEBhf.dpuf
"Do your plants care about CRI? Only if they are buying carpet, shirts, or cars. Some horticulture lighting brands publish the CRI values. However, CRI value has little to do with lamp spectrum or its ability to grow plants."
http://www.eyehortilux.com/education-room/understanding-cri.aspx#sthash.1x9GEBhf.dpuf
grapefruitmarmalade
Well-Known Member
I'm not buying what Eye Hortilux is trying to sell here... are they saying it's a mere coincidence that high CRI light fixtures (be it LED or HID) are better at growing plants and have a more uniform spectrum?!
apologies for the hijacking
Merlin34
Well-Known Member
I guess I don't care what anyone says, the higher the CRI rating of lighting I've used the happier the plants are. I listen to the plants. Again, I'm not saying it's the end all be all, just that I've seen a direct correlation over a long career of growing cannabis.
Colorado
DesertGrow89
Well-Known Member
@grapefruitmarmalade No, they are saying that CRI is irrelevant, which is more than likely bs as we are supposed to mimic natural sunlight for optimal results. My guess why is because they want to continue selling HPS bulbs with low CRI.
verticalgrow
Well-Known Member
g'day Merlin,
how many plants per light in bloom stage and what is the expected yield per plant?
Also, will the same pots be used for veg and flower?
Love the pics keep them coming.
how many plants per light in bloom stage and what is the expected yield per plant?
Also, will the same pots be used for veg and flower?
Love the pics keep them coming.
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Merlin34
Well-Known Member
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Merlin34
Well-Known Member
Same pots, 4 plants per light. Yields = financials, which I really won't get into. I'll give some specific plant yields down the line, but not expected averages.
Colorado
verticalgrow
Well-Known Member
Thx Merlin,
how many weeks is veg time?
how many weeks is veg time?
Merlin34
Well-Known Member
verticalgrow
Well-Known Member
Thx Merlin,
Would a 5gal pot yield more then a 3gal pot with both having the same veg times?
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