Changing distance to plants vs dimming
- Thread starter drgroove
- Start date
wietefras
Well-Known Member
It's really not a matter of argument. Like Rahz says, you can simply measure which height is "optimal".
My example about the car speeding is spot on. You can come up with a lot of vague assumptions of things that might be slightly different with no real explanation of what the effect would then be. Why bother when you can simply measure what light the plants get both on top and below the canopy.
Malocan and I both measured a 20% loss in a standard tent by going from 12" to 24". It's that simple.
You can also easily measure below the canopy. Do a diagonal line across the plants. There might be some difference there since some people have a more open canopy than others. Either way, with more light you will see more light down there too. I sure did at least.
My example about the car speeding is spot on. You can come up with a lot of vague assumptions of things that might be slightly different with no real explanation of what the effect would then be. Why bother when you can simply measure what light the plants get both on top and below the canopy.
Malocan and I both measured a 20% loss in a standard tent by going from 12" to 24". It's that simple.
You can also easily measure below the canopy. Do a diagonal line across the plants. There might be some difference there since some people have a more open canopy than others. Either way, with more light you will see more light down there too. I sure did at least.
Greengenes707
Well-Known Member
So your answer to the question is to raise the light, and not to dim. Thanks for your long rounded and contradictory way of agreeing.
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sophomoreskunk
New Member
I'm using a 300watt Mars hydro in a 3x4 I'm unable to turn it up past 40% even at almost 30inches. I thought maybe it was the strain but I've had the same problem with multiple strains. Is my light to powerful because I feel like if I'm unable to have the meter reading the recommended ppfd at the top of the plant without them being burnt the next day then I'm not going to get the full potential of the plant. I have friends with more powerful lights and are able to max em out, frustrating as hell, almost makes me want to go back to HID I never had that problem with HPS or even T5, please help
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Rocket Soul
Well-Known Member
You need to heat that space and make sure they transpire well, all pointy leafs. Check out vpd if you havent yet
