Flowering Under 315 Cmh

[jumpincactus]

Yep I was skeptical too- I trialed 315s and was instantly sold - anyone who doubts these lights or talks them down obviously has never used them - really pulling out some stops for the next harvest to see how big of a yield I can get off these lights - usually I'm a connaseuir grower but I'm curious to see what they can do with a hydro setup and big yielding strains - hoping to see somewhere between 1.3-1.8 per fixture.

That would be nice to watch......... I'm just about to pull the trig on some nanolux 630's. That is if it isnt going to be a huge PITA to be able to get someone to hook me up so I can power from my 240v line. Not sure what it entails, or how much that may cost. I know a sparky who can probably hook me up for a fair price. Can anyone tell me how involved it will be? And whats a fair price for the work? .......Ballpark

 

[mancdank]

That would be nice to watch......... I'm just about to pull the trig on some nanolux 630's. That is if it isnt going to be a huge PITA to be able to get someone to hook me up so I can power from my 240v line. Not sure what it entails, or how much that may cost. I know a sparky who can probably hook me up for a fair price. Can anyone tell me how involved it will be? And whats a fair price for the work? .......Ballpark

Bro I'm a spark but I'm struggling with the question it's late and I'm high lol :) chances are though I could probably explain pretty much anything in a groom it's all pretty straight forward

 

[mancdank]

That would be nice to watch......... I'm just about to pull the trig on some nanolux 630's. That is if it isnt going to be a huge PITA to be able to get someone to hook me up so I can power from my 240v line. Not sure what it entails, or how much that may cost. I know a sparky who can probably hook me up for a fair price. Can anyone tell me how involved it will be? And whats a fair price for the work? .......Ballpark

Do u want to run US voltage appliances through a 230v supply ?

 

[jumpincactus]

What I was getting at is, if nanos only run from 230v supplies, how can I set nanos up to run off US 240 v supply. The only things that run off the 240 main are stove, AC, washer n dryer. All others are 120v. Just trying to figure out what would be required for my to run the nanos from my mains. Not an electrician BTW. Or am I out of luck? or should I just stick with a mfgr that makes 315 or 630's powered from a 120v system? Hope that made sense.

 

[mancdank]

What I was getting at is, if nanos only run from 230v supplies, how can I set nanos up to run off US 240 v supply. The only things that run off the 240 main are stove, AC, washer n dryer. All others are 120v. Just trying to figure out what would be required for my to run the nanos from my mains. Not an electrician BTW. Or am I out of luck? or should I just stick with a mfgr that makes 315 or 630's powered from a 120v system? Hope that made sense.

U can buy step up transformers to take it to 230v as u can get step down transformers over here that will take it to 110v but tbh u would probably be better just getting the 1s that will already work off your supply

 

[Freshone]

That would be nice to watch......... I'm just about to pull the trig on some nanolux 630's. That is if it isnt going to be a huge PITA to be able to get someone to hook me up so I can power from my 240v line. Not sure what it entails, or how much that may cost. I know a sparky who can probably
hook me up for a fair price. Can anyone tell me how involved it will be? And whats a fair price for the work? .......Ballpark

If your panel can support the extra breaker already it's just running the line and hooking it all up on both ends.Much better to run off 240 if you can,less amp draw and things run cooler and more efficient.

 

[jumpincactus]

If your panel can support the extra breaker already it's just running the line and hooking it all up on both ends.Much better to run off 240 if you can,less amp draw and things run cooler and more efficient.

After looking at my main panel, I see there are some "blanks" that would allow for a additional breaker. What do you think a Sparky will charge me to install one.? Then my question would be, wouldn't the sparky then have to run a line to my groom so I can run off the 240v circuit.?

Think I sorta answered my own question. But had to ask............Thanks for your help. :)

 

[jumpincactus]

U can buy step up transformers to take it to 230v as u can get step down transformers over here that will take it to 110v but tbh u would probably be better just getting the 1s that will already work off your supply

Ya thats what I have been thinking. But after review those Nanolux if all is truth and no fluff in the sales pitch, they look to be pretty awesome. Thanks for your input bro. Hope all is well over there.

 

[DemonTrich]

There's a thread over at MAG, apparently there's a few growers having issues using the 3100 bulbs in flower showing a lot of difficiencies. Guy nixed 30 plants iirc.

 

[EventHorizan]

What size footprint did you run them with? I've been picturing putting 2 315s in an a-wing or two, the ballasts and adapter kits are like half the cost of a cmh fixture.

Link??? For the ballast and adaptors?

 

[EventHorizan]

Just found this, if anyone's interested ...

www.grobaldistributors.com/retrofit.php

The On-PAR 315 yielded a 43% increase in production over the previous best harvest with high pressure sodium lighting. Also, the amount of time spent flowering was reduced from 65 days to 45 days, a decrease of 23%. These two factors combine to allow for an extra 2.5 harvests each year, improving from 5.6 to 8. This has increased the production each year by more than double.

How does this light reduce flowering time by 20 days? Someone please explain how that works????

 

[EventHorizan]

I've got a 4' x 8' tent I use for testing when I've done what I'm doing in it I will replace the 2 x 600 hps for 3 x 315s and post the findings I've been looking at new lights for a while now

I'm really interested to know how this goes. I'm running a 4x8 with 2 dimmable 1k's at 600w with horti bulbs in open air bat wings. I'm really interested in Temps more than anything.

 

[mancdank]

The On-PAR 315 yielded a 43% increase in production over the previous best harvest with high pressure sodium lighting. Also, the amount of time spent flowering was reduced from 65 days to 45 days, a decrease of 23%. These two factors combine to allow for an extra 2.5 harvests each year, improving from 5.6 to 8. This has increased the production each year by more than double.

How does this light reduce flowering time by 20 days? Someone please explain how that works????

Hmmm good question i wouldn't mind knowing this myself

 

[EventHorizan]

Hmmm good question i wouldn't mind knowing this myself

Because if it would really decrease flowering by 23%, with no effect on yield, then it's a no brainer.
I just have a hard time putting stock into that statement. But there is a good chance I'm clueless... so someone please educate me....

 

[mancdank]

Because if it would really decrease flowering by 23%, with no effect on yield, then it's a no brainer.
I just have a hard time putting stock into that statement. But there is a good chance I'm clueless... so someone please educate me....

U pretty much hit the nail on the head the only way I know to reduce flower time is to increase hours of darkness or kill em

 

[EventHorizan]

U pretty much hit the nail on the head the only way I know to reduce flower time is to increase hours of darkness or kill em

Maybe someone will come along and explain... until then it's just a fairytale to me... I will go Google and see if I can find anything.

 

[mancdank]

Maybe someone will come along and explain... until then it's just a fairytale to me... I will go Google and see if I can find anything.

I wouldn't waste your time or energy

 

[Ignignokt]

Interesting thread. The quality (spectrum) of a light source can influence the progress because plants are essentially a collection of various wavelength photon processors - this is accounted for in what is called the Daily Light Integral or DLI. DLI is important for optimizing greenhouse power consumption when using mixed light.

Explained - ( from a Heliospectra blog )
Light measurements

Widely used units for light intensity measurements are lux, footcandles or micromoles of photons per square meter per second (µmol/m2/s). These, however, give an idea about intensity of instantaneous light, meaning the amount of light recorded at the time the measurement is made. In most greenhouse environments light levels change throughout the day. Therefore instantaneous measurements may not provide an accurate information of the total amount of PAR your plants receive during the course of a day. This is where DLI come in.

Daily light integral (DLI)

Daily light integral (DLI) is defined as the amount of photosynthetically active radiation (PAR) delivered over a 24-hour period. It is measured as the number of moles (particles of light) per day (mol.m-2.d-1 ), and often abbreviated to “moles/day” (or m/d) in trade journals. To put it simply - the total quantity of light delivered over the course of an entire day. So, DLI is a useful measurement for describing the light in a commercial grow facility.

What DLI is needed?

But what DLI is ideal to grow high-quality plants? The answer depends on the crop or species itself, as requirements of plants vary greatly. But, an often used minimum target inside a greenhouse is 10-12 mol.m-2.d-1 for healthy crops.

The Importance of DLI in Greenhouse Production

DLI is an important variable to control in every greenhouse because it influences plant growth, development, yield and quality. Lowering or increasing the DLI the plant receives has a direct affect on the plant - affecting branching, rooting, stem thickness and flowering.

----

My point is - photon count and wavelength of those photons matter. The shorter time can be accounted for by consistently reaching the DLI requirement for every growth period (for the particular strain, as DLI requirements vary based on genetics and desired phenotype expression).

The DLI numbers I've seen for cannabis have varied from 18-30 moles/day.

This is a swell info PDF - https://www.extension.purdue.edu/extmedia/HO/HO-238-W.pdf

 

[EventHorizan]

Interesting thread. The quality (spectrum) of a light source can influence the progress because plants are essentially a collection of various wavelength photon processors - this is accounted for in what is called the Daily Light Integral or DLI. DLI is important for optimizing greenhouse power consumption when using mixed light.

Explained - ( from a Heliospectra blog )
Light measurements

Widely used units for light intensity measurements are lux, footcandles or micromoles of photons per square meter per second (µmol/m2/s). These, however, give an idea about intensity of instantaneous light, meaning the amount of light recorded at the time the measurement is made. In most greenhouse environments light levels change throughout the day. Therefore instantaneous measurements may not provide an accurate information of the total amount of PAR your plants receive during the course of a day. This is where DLI come in.

Daily light integral (DLI)

Daily light integral (DLI) is defined as the amount of photosynthetically active radiation (PAR) delivered over a 24-hour period. It is measured as the number of moles (particles of light) per day (mol.m-2.d-1 ), and often abbreviated to “moles/day” (or m/d) in trade journals. To put it simply - the total quantity of light delivered over the course of an entire day. So, DLI is a useful measurement for describing the light in a commercial grow facility.

What DLI is needed?

But what DLI is ideal to grow high-quality plants? The answer depends on the crop or species itself, as requirements of plants vary greatly. But, an often used minimum target inside a greenhouse is 10-12 mol.m-2.d-1 for healthy crops.

The Importance of DLI in Greenhouse Production

DLI is an important variable to control in every greenhouse because it influences plant growth, development, yield and quality. Lowering or increasing the DLI the plant receives has a direct affect on the plant - affecting branching, rooting, stem thickness and flowering.

----

My point is - photon count and wavelength of those photons matter. The shorter time can be accounted for by consistently reaching the DLI requirement for every growth period (for the particular strain, as DLI requirements vary based on genetics and desired phenotype expression).

The DLI numbers I've seen for cannabis have varied from 18-30 moles/day.

This is a swell info PDF - https://www.extension.purdue.edu/extmedia/HO/HO-238-W.pdf

Hey thanks for taking the time to share this. Hopefully a trusted member will do a side by side soon and we can get a better understanding. The claim of 23% less flowering time tho seems to push the limits of growers ability to have faith on mere words...

 

[Ignignokt]

I think the significant difference in these lamp sources is the spectrum profile - CMH puts more of the consumed power in useful PAR and UV wavelengths that the other lamps are rather poor at generating. Certain important biochemical reactions can still happen with the lower energy levels of longer wavelengths, however they do take longer.

DLI is only measuring the quantum photon count - since usually applied to sunlight, assumes the broadband spectrum of natural sunlight. With artificial sources, we would need to mimic the solar spectrum to use DLI in a similar way since it may be impractical to adjust for spectral differences. Plants have photoreceptors intended for specific wavelengths - this is why spectrum matters.