[VerdantGreen]

hi all, i was wondering if anyone had any papers or personal experience of using different light levels during flower to help Gram per watt efficiency (yes i know it isnt the best measure of efficiency but that's not what i want to discuss here)
Basically i would like to know at what point in flower is it important to have maximum light levels and at what point its not too detrimental to use lower levels.
eg i was thinking of lowest levels for late veg/early flower
highest levels for mid flower
and slightly lower for late flower till finish - which may help to preserve terpenes.

thanks

VG

[Smelly_Cheese]

yeah i was kind of wondering the same thing. My budget has changed. I have a 1000watt dimmable that im running a 600watt hps bulb in and im 5 days flower. I plan on running the 1000k bulb for weeks 3 thru 8 or 9 then back down to 600 for 9,10, and 11. Is this a good plan?

i was about to say fuck it and put in the 1000k bulb today but thats more ac and im pulling very hot air in from outside so its alot to cool.

[VerdantGreen]

ive heard of people using less light in early flower until the plants bud up, and ive heard of people raising the lights in late flower to reduce the heat radiation as the plants finish... but thats about it really. hopefully someone will have experience or info

VG

[Smelly_Cheese]

normally id just put in the bigger and say fuk it but im really doing my best to control cost. I do not sell and only grow for 2. I want a lb to last till late fall as i will shut down this year for summer. In summer outside temps over 90 everyday and i have to run a second ac. 2 ac's a 1k light on mover and fans and stuff were adding about $300 per month on summer months electric bill.

[Grow_engineer]

Originally Posted by Smelly_Cheese

im pulling very hot air in from outside so its alot to cool.

Sounds like a sealed room yould be your way

I recently thought about a rotating System quite similar to anti´s colloseum, therefore i did want to change the places of the Plants so simulate a Cycle of Light that peaks in 2/3 of Flower, with reduced Power for the first 3 an the last 2 weeks counting on 12 Weeks in flower. (i hope this explanation makes sense in english )

[Hash Zeppelin]

Originally Posted by Smelly_Cheese

yeah i was kind of wondering the same thing. My budget has changed. I have a 1000watt dimmable that im running a 600watt hps bulb in and im 5 days flower. I plan on running the 1000k bulb for weeks 3 thru 8 or 9 then back down to 600 for 9,10, and 11. Is this a good plan?

i was about to say fuck it and put in the 1000k bulb today but thats more ac and im pulling very hot air in from outside so its alot to cool.

it is worth every penny to always run your shit at 1000 over 600. huge difference in yield. I know this for a fact. I have done side by sides. the bud also gets denser.

however you only need to run max light like ten hours a day. run half light fir the first and last hours.

at the end of flower it is important to run them at 1000 because it makes the plant use up more chlorophyll. so it flushes better and tastes better in final product

in veg it is important because it makes tighter internodes.

600 sucks. Even though a 1000 is only 400 more watts, it puts out way more than twice as many lumens.

[BasementBreeder]

Originally Posted by Hash Zeppelin

600 sucks. Even though a 1000 is only 400 more watts, it puts out way more than twice as many lumens.

Last I checked, most 600's put out around 90k, while a 1000 did around 135k

[Mate Dave]

Its all down to experience of the plant in question in reality.

Some plants are more photosensitive than others Light leeks etc, I too have heard of the increase of light at the onset of bud,, it stops stretch that is all.

Its decreasing the food production capabilities of the mitochondria, Not low enough to promote week etiolated growth but less ability to produce reserves.

I doubt if it would increase brix in the plants,, also phytochromes and cryptochromes play a significant role in the floral expressions of a plant as much as exposure to photo period can.

At the end of the day thc is a protective sun screen for the lamina cuticle and also chloroplast and palisade mesophyll which contain the Carotenoids and Flavonoids that are responsible for growth.

Since the Thc is part of this area of the plant and that given a different spectrum of light will garner significantly better resin production if left late in flower as sinsemilla it seems that you could get the same kind of terpines etc but just less of them..

And less terpenes means a different kind of high as the taste makes the difference..

We should as Sam S...

Full tilt lighting has yielded best here...sequencing/dimming/decreasing light quantities always got me a bit less product. Peace

[Smelly_Cheese]

switched to 1000k bulb this morning. I just could think of not getting the maximum yield. I was able to spread everything out just a few more inches allowing better penatration.