Tejashidrow
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Actually it is umoles- micro is designated as 'u'It's actually moles...umole is a unit of liquid.
When you measure moles, you are measuring in the 400 to 700 wavelength... Those are the relevant wavelengths for plants.
It's just another way of saying that if you want a true PAR measurement, you need to be using the proper wavelength.
@ken dog
Here's a part why I ask
My bloom area was 2 square feet
I had a DIY cob useing 2-Cree cxa 3070's driven at 50 watts each (100 watt total)
I've bumped my grow area up to 4 square feet but still useing the same above fixture, so now it's 25 watts psf, with a bad foot print.
I want to bump up to at least 200 watt ( maybe more???) by adding. 2- cxa 3590,s.
Is there a way to measure umoles
@PhatNuggz ?
Thanks to both for your input
Peace
Actually it is umoles- micro is designated as 'u'
Yes. .. it would be nice if you provided a link next time... Save me the trouble of doing the research and finding the appropriate link myself. Once again, here is the link that I providedThe discussion is not about solution, the discussion is about light, which is defined as micromoles/meter square= umoles
Yes. .. it would be nice if you provided a link next time... Save me the trouble of doing the research and finding the appropriate link myself. Once again, here is the link that I provided
Once again, here is the link that I provided...
.http://www.egc.com/useful_info_lighting.php
Fair use excerpt:
This is an objective measure since it directly indicates how much light energy is available for plants to use in photosynthesis. However, lamp manufacturers typically rate their lamps in lumens, a measure of light in the spectrum visible to humans. Moreover, most lighting engineers measure lighting levels in lumens per square meter (lux) or per square foot (foot-candles). Since the spectral sensitivities of plants and humans are quite different, there is no direct method of converting the units without evaluating the full range of spectral characteristics for a given light source.
50w/Sf is best for veg and bloom. you can always dial back or dim the fixture. 50w/SF will give you the PPFD in the 700's every time. the sweet spot. With COB leds it is not watts but lumens/watt. At 700ma you can drive more lumens/watt than at 1400ma. Plants veg great at 700ma with a MW HLG-185H-700B 4- cxb3590, 36v. peacebefore LEDs I was a hps grower
The adage was :
More watts
More buds....
I understand 25 watts per square foot is good for led.
Is there anyone useing the more watts more buds with LEDs???
I.e. Over 25 watts psf
Thanks...00
With a hlg-185h
Can I run a odd number of cobs
Or
Do I have to run even number of cobs??
With this driver I just thought I could run my two 3070's and one 3590.
That would make the 3 cobs run at about 68 watts each well below their max wattage but oosing a bit of effecny, but giveing me the 200 watts I'm looking to get for my grow area
It's not gonna be 68w each but 50w with the room to add the fourth later. The Meanwell drivers don't work that way and that question has been asked on different forums. Btw guys I'm doing organic soil now. I'll post pics soon on my thread stay tuned.With a hlg-185h
Can I run a odd number of cobs
Or
Do I have to run even number of cobs??
With this driver I just thought I could run my two 3070's and one 3590.
That would make the 3 cobs run at about 68 watts each well below their max wattage but oosing a bit of effecny, but giveing me the 200 watts I'm looking to get for my grow area
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