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- #21
Omega infinity 200w
- Thread starter Trapper3
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- kelvins unknown
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- #23
Finally an answer, thanks my friend
been doing my head in not knowing what it should be to get my settings correct.....massive thanks to you!! Cheers bluter.. appreciate it..
Finally an answer, thanks my friend
lol don't hold your breath, it's probably slightly higher. but it's a good place to start.
you can judge by the "colour" the light throws. it looks pretty white in the pics, 3500k would look a bit warmer or more yellow. i use a mix of 3000k and 3500k cobs and my grow space looks closer to what an old hps bulb would.
Delps8
Well-Known Member
The spectrum diagram is very helpful.
I've attached a document that I wrote about converting lux to µmol. Going strictly from the spectrum diagram, I would use a conversion factor of 0.0155 or 0.016.
My rationale for that is that if you had just red and blue spikes with a fair amount of green, a factor of 0.015 would work well. The spectrum for your light quite a bit of light at 600 as well as a fair amount of far red, that being the light >700nm. Now that I describe it, 0.016 is probably more accurate.
It's great that you're using a light meter. If you use it to get your plants to high light levels, you will be amazed at how large a crop you can grow. Key point to remember — a light meter will tell you how much light is falling on your plant but the plant will tell you how much light it can use.
Below are the light values for my current grow. I measure light levels daily using an Apogee. My rationale for using these light levels is the research clearly demonstrates that with cannabis, crop yield and quality increase in an almost linear manner as light levels increase, as long as light is the limiting factor.
I've attached a document that I wrote about converting lux to µmol. Going strictly from the spectrum diagram, I would use a conversion factor of 0.0155 or 0.016.
My rationale for that is that if you had just red and blue spikes with a fair amount of green, a factor of 0.015 would work well. The spectrum for your light quite a bit of light at 600 as well as a fair amount of far red, that being the light >700nm. Now that I describe it, 0.016 is probably more accurate.
It's great that you're using a light meter. If you use it to get your plants to high light levels, you will be amazed at how large a crop you can grow. Key point to remember — a light meter will tell you how much light is falling on your plant but the plant will tell you how much light it can use.
Below are the light values for my current grow. I measure light levels daily using an Apogee. My rationale for using these light levels is the research clearly demonstrates that with cannabis, crop yield and quality increase in an almost linear manner as light levels increase, as long as light is the limiting factor.
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- #26
Thank you for the amazing information....Im currently on 12/12 now and it's great that you can see the change so quickly on the bud formation... loving itThe spectrum diagram is very helpful.
I've attached a document that I wrote about converting lux to µmol. Going strictly from the spectrum diagram, I would use a conversion factor of 0.0155 or 0.016.
My rationale for that is that if you had just red and blue spikes with a fair amount of green, a factor of 0.015 would work well. The spectrum for your light quite a bit of light at 600 as well as a fair amount of far red, that being the light >700nm. Now that I describe it, 0.016 is probably more accurate.
It's great that you're using a light meter. If you use it to get your plants to high light levels, you will be amazed at how large a crop you can grow. Key point to remember — a light meter will tell you how much light is falling on your plant but the plant will tell you how much light it can use.
Below are the light values for my current grow. I measure light levels daily using an Apogee. My rationale for using these light levels is the research clearly demonstrates that with cannabis, crop yield and quality increase in an almost linear manner as light levels increase, as long as light is the limiting factor.
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- #27
I'll send you a update on her...but I'm liking the fems than Than the auto's tho...
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- #28
Im away to check on her now....can't thank everyone enough for the help and tips....best place to be to grow, for advice and help...thanks to everyone... happydays
Fems from one of our reputable sponsors is all I’ll pop.
Autos can be so finicky.
And I’m not gentle in my garden.
Don’t want to upset our talented auto growers.
Some are amazing at it.
But I’ll never pop another on purpose.
Waste of 3 months work.
Good luck with your fems my friend.
Stay safe
Bill284
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- #30
It's on 383 bt with the ppfd app for the +10 far red, is it 3500k +10 or 4000k so i can measure correctly, if anyone has any idea which one to choose from id greatly appreciate it...sorry for the misunderstanding my bad, my LEDs got no info on I've checked everywhere online...least Ive learned to study when purchasing my light unit... lesson learned but ifs doing well so far...just would like fine tune my meter to my app.
Delps8
Well-Known Member
I can't help with the Kelvin value of the light but, based on the spectrum from earlier in the thread, I'd go with a factor of 0.0155.
Attached is a document I wrote about converting lux to PPFD. A standard white LED has a conversion factor of 0.015 but a light with more red like the Growcraft X3 flower light is higher at 0.016
If you go with 0.0155, that will put you in the ballpark.
It's good to see that you're using a light meter. By now, it's an "old saying" but you really can't improve what you don't measure and getting more light on your plants is an easy way to improve the size and quality of a cannabis crop.
The light saturation point for cannabis is 800-1000µmol, even in ambient CO2, cannabis will thrive at levels >1000µmol.
Aside from CO2, once the inputs to the grow environment have reached the "sufficiency" level, light is the only input you can add that will increase crop yield so don't be shy when it comes to feeding your plants (light is how plants make food).
Attached is a document I wrote about converting lux to PPFD. A standard white LED has a conversion factor of 0.015 but a light with more red like the Growcraft X3 flower light is higher at 0.016
If you go with 0.0155, that will put you in the ballpark.
It's good to see that you're using a light meter. By now, it's an "old saying" but you really can't improve what you don't measure and getting more light on your plants is an easy way to improve the size and quality of a cannabis crop.
The light saturation point for cannabis is 800-1000µmol, even in ambient CO2, cannabis will thrive at levels >1000µmol.
Aside from CO2, once the inputs to the grow environment have reached the "sufficiency" level, light is the only input you can add that will increase crop yield so don't be shy when it comes to feeding your plants (light is how plants make food).