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Im just here to find the best lighting, spectrum for each stage and to get the best flowers and yield. Thread https://www.rollitup.org/t/de-hps-spectrum-shootout-2100k-vs-4000k-vs-6000k-vs-10-000k-commercial.961870/ Enjoy the ride. Time to put this age old debate to rest with some real world...

Greetings everyone. If you have read my thread from a few years ago regarding spectrum in different stages you will know it never got answered with solid evidence. So its time I run a commercial side by side to give some final numbers, data and lab results to put this to rest. I hope one day...

I have read this, anecdotal at best. I have read every thread there is on COBS and spectra. Its time to run a legit test once and for all. This is no to shame any lighting, but to finally put to rest in a commercial environment which K works best when.

Read post above. I was not saturated in PPFD at the height I was at. I own a Par meter and ran the PPFD calculations. Did these runs with different ppfd each time. Results still stand. All plants were very healthy and no issues as always. Nutrients were: Plant Prod 6-11-27 + Calcium Nitrate +...

I should clarify a few things here. Pretty sure everyone and their grandma is getting about 3lbs a light at 1150, including myself with solid genetics. I did not have too much light. I own a PAR meter and a spectrometer. I made sure I was running 900-1000 PPFD at the canopy. My plants were very...

It was a 5 x 5 Tent to keep the climate, VPD, RH and humidity controlled in both 5 x 5 tents. Thats what Im saying, there is lots of talk and respewed info but not much back it. Just people saying the things they have done or have read. I want answers. Solid , non disputable answers. There isnt...

I never finished it. that was years ago, been way too busy to publish a full journal. Will publish a journal of the DE Spectrum Bulb test though. iw ant that documented.

The COB was build with 1,000w of power running CXB3590 3500k. They ran very cool, however the price to build one in Canada was astronomically high. The penetration was less even with defoliation and a SCROG. All same strain I have been running for a long time. The LED produced denser slightly...

To clarify by better for COB LED. I mean slightly denser flowers even on my cookies cuts and oveerall potency lab tested by 3%. However, the 3% gain wasnt worth the descent yield gap. I think testing these K temp bulbs with DE will kill the COb grows Ive done.

Great read. I have done a few side by sides with COBS vs DE HPS of differant brands. My conclusion was that COB produced better flowers, but DE had the better penatration and yield. I lollipop and scrog. Want to see this test for myself as LED is just still too expensive for industrial use in...

Explain a bit more on that. Just want to know for myself and from this thread its not not answered. I have the facility now to run this test so I will. For years people have said this and that but with no real data. Well its time. Look out for a thread on Wednesday. Suprised no one has run this...

Hello everyone, its been almost 2 years since I started this thread, lots of great info in here and some big names in the community. I appreciate all the comments from everyone and all the data. I have come back to this thread to run a test. It will take quite a while, but here is the test that...

Greetings mates, been some time. Here is my predicament. Have always run 3 Gal Coco in Flower. Recently switched to 2 Gallon and my yield went down drastically contrary to what CoCo growers have stated. I went from 6 oz to 2.5OZ SAME everything. Setup: My Own Cookies Strain 5 x 5 Space Fabric...

When running this 2 OZ What size pots are you running/ OZ per gallon of soil? Every experience any burn at all with mature plants ( not seedlings or early clones)

Thanks and yeah I have good chem results in coco, just dont have the time anymore and hate PH ajusting all the time. So you fert about 2wice per bloom cycle instead of the every 2 weeks reccomened? Any reason why? Using additives etc?