Watts = Weight?

[OneHitDone]

It is often heard that watts = weight and I was wondering how many of you lighting gurus here in the led forum have done any testing to try to back that up?
Lets say I take my inda-gro 420 pontoon combo (460w) and replace it with a 1000W hps, am I really likely to see double the weight in the same space with the same strain, nutrients, etc?
I know there is technicalities on things like µmoles, just looking for real wold test feedback from others.

 

[Abiqua]

Do you have quotes saved? Who has ever said that?

 

[OneHitDone]

Do you have quotes saved? Who has ever said that?

lol All the HID growers

 

[vitamin_green_inc]

Same space? Hmm, I feel like if I could fit a 1000w I would do such a thing. An enviroment for optimal 1kw would be much different from optimal cobs without reflectors vs cobs with reflectors vs DE 1kw which you want 7+ foot ceilings... But still there are limits proven time and again by commercial growers who hit 2~ per light, I think I have seen 3~per, but that was a crazy heavy-yielding strain.

That's why I feel like if someone hit .5 GPW with a Blurple panel that claims 400w...well technically you would be gettig more like .9 GpW, as we all know those panels don't put out as much wattage as they claim...

 

[OneHitDone]

I was meaning in a space with sufficient ceiling height to utilize any lighting source. For example a 5x5x8tall box

 

[SPLFreak808]

In 2015, watts doesn't equal weight no more and can only be compared with by the same type of bulb and ballast output.

 

[vitamin_green_inc]

I was meaning in a space with sufficient ceiling height to utilize any lighting source. For example a 5x5x8tall box

Idk, I have yet to see a tree under LeD, and you can produce a lb+ easy with 1kw and 1 plant lol. Idk if an LED would be able to each that low into the canopy though?

 

[bicit]

It is often heard that watts = weight and I was wondering how many of you lighting gurus here in the led forum have done any testing to try to back that up?
Lets say I take my inda-gro 420 pontoon combo (460w) and replace it with a 1000W hps, am I really likely to see double the weight in the same space with the same strain, nutrients, etc?
I know there is technicalities on things like µmoles, just looking for real wold test feedback from others.

Now days photon density is the metric to use. The only real effective way to compare different lighting technology. Generally speaking, the higher the photon density, the higher the yield.

The guru's around here seem to think 750-1000PPFD is the sweet spot for quality and quantity. I think beta test team on ICmag determined 1500PPFD to be the point of diminishing returns. Could be mistaken on both.

The point is, photons are what drives photosynthesis, not watts.

 

[KarmaPaymentPlan]

Dissipated watts = weight?

 

[OneHitDone]

One other thing I have observed is that plants seem to get "woodier" or tougher under hps but yet more stretched than other light sources I have seen in person.
Leading me to wonder if that is more a function of intensity or spectrum.
Any of you grown under say 600 and 1000 hps and note any difference in plant structure based soley on intensity?

 

[The Dawg]

Idk, I have yet to see a tree under LeD, and you can produce a lb+ easy with 1kw and 1 plant lol. Idk if an LED would be able to each that low into the canopy though?

That's Because You Haven't Followed A Dawg House Production Journal. Here's A Peek At 1 Of The Dawgs Nasty Azz Hoe's Currently Under Contract

 

[churchhaze]

Of course watts matters. You can't power something without power. Photosynthesis is powered with watts of radiation.

Between 12-16W/sqft PAR is a good rule of thumb for powering your plants.

 

[ttystikk]

Idk, I have yet to see a tree under LeD, and you can produce a lb+ easy with 1kw and 1 plant lol. Idk if an LED would be able to each that low into the canopy though?

As a long time tree grower, I'm absolutely sure I can grow pounders with LED and I am even now formulating a plan to prove it.

What's more, I believe the technology has matured to the point where I can get more yield with LED than with HID. Again, a personal belief/hypothesis I plan to test.

 

[OneHitDone]

As a long time tree grower, I'm absolutely sure I can grow pounders with LED and I am even now formulating a plan to prove it.

What's more, I believe the technology has matured to the point where I can get more yield with LED than with HID. Again, a personal belief/hypothesis I plan to test.

Would that plan include a scrog or a freestanding tree?
I think veg time and scrog arent good comparisons on straight out flowering from a given height. That is what I am interested in with this post.
Say two identical 12" un-topped plants flowered under different wattages

 

[OneHitDone]

For instance. What should this set of plants right here ideally yield flipped to 12/12 now under different wattages?

 

[ttystikk]

Would that plan include a scrog or a freestanding tree?
I think veg time and scrog arent good comparisons on straight out flowering from a given height. That is what I am interested in with this post.
Say two identical 12" un-topped plants flowered under different wattages

Not topping the plant is doing it no favors indoors.

Yes, increasing watts per square foot makes a big difference in growth. Changing the source to improve spectrum helps, too. Changing the light source to be more efficient also helps.

As with anything, there are limits as to what the plants can handle.

My plan is a well trained vertical tree, grown exactly like and under the same conditions as those I flower under HID. The only difference will be bloomroom lighting, thus a true test.

 

[ttystikk]

For instance. What should this set of plants right here ideally yield flipped to 12/12 now under different wattages?
View attachment 3458456

How would I know? Too many variables. You can try it with different wattages and see what happens yourself!

 

[SupraSPL]

It is often heard that watts = weight and I was wondering how many of you lighting gurus here in the led forum have done any testing to try to back that up?
Lets say I take my inda-gro 420 pontoon combo (460w) and replace it with a 1000W hps, am I really likely to see double the weight in the same space with the same strain, nutrients, etc?
I know there is technicalities on things like µmoles, just looking for real wold test feedback from others.

In the example you gave, I estimate you would more than double your total yield. But If you went with 1000W of cutting edge LED I estimate you would double it again, so that ruins the direct watts=weight approach.

 

[SupraSPL]

Idk, I have yet to see a tree under LeD, and you can produce a lb+ easy with 1kw and 1 plant lol. Idk if an LED would be able to each that low into the canopy though?

These 5gal ladies were flowered under 25W COBs although many growers are running 50W COBs so you could grow some very large plants indoors if that was your goal. The COBs can be used for side lighting around the outside of the canopy and you should be able to cover any tree no matter the height.

 

[OneHitDone]

In the example you gave, I estimate you would more than double your total yield. But If you went with 1000W of cutting edge LED I estimate you would double it again, so that ruins the direct watts=weight approach.

If that holds true power costs would be of non concern since yield will increase much more than the extra wattage consumption.
I was hoping to find someone that has run say a 600hps and a 1000hps in the same space with the same strain, etc. that had seen it with their own direct experiences
Next question would be, if the photosynthesis is sufficient to grow huge plants at lower wattage pre-flower - what is it about the higher power that directly influences flower size and weight?