How do you calculate this?
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70w / 3sqft = 23.3w/sqft and my hang height of lights above them was 18"ā¦
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*edit
got it. thank you very much.
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Day 26/24
Well as you can see below quite a few plants got culled, and the remaining ones apart from the GSCxDD got flopped. Only reason for the culling is since starting these seedling i was only looking for a seed mother or two or possible pollen donors, even though i had plenty of healthy and happy plants that would of yielded well that just wasnāt my goal.
Anyways far left front green phone is gonna be hit with that pollen i collected 3-4 weeks back, had the best pistil flush going on of all the green pheno plants, and a very nice smell on stem rub. The one beside it is just along for the ride for now but will be the first to go, and the two on the back are purple phenos with one of them being sprayed with cs seeing if we cant get some pollen off of it before in a week or two, but im not seeing any signs yet, and the little pots on the right are just there to finish out the seeds going in those buds.
The right side, got the two GSCxDD for the 16oz covid contest for fun which are still being hand fed once or twice daily. Also a bunch of starting pots with some seeds in them but they needed to be cracked and are a bit older and immature a little but we will see if any pop, or ill start thinking on what i want to do next.
Also over to full maxibloom right now, as i ran out of megacrop and they arenāt stocked in canada apart from a sorta local-ish hydro store which i may order from which also carries jackās which is an oddity here so we will see on that too.
Have as good of a social distancing 420 as you can 
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Day 29/27
The plants that are left are just doing their thing, just one will get hit with pollen but till then im keeping some of the others around just to have some plants to tend too.
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A young bud set of the future mother plant iāll use for seeds, gonna wait another 5 days + or - before i pollinate it, want to get it nice and saturated seed making wise.
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When you pollinate is it at 4 weeks from flip or 4 weeks from flowers showing?
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More loose than that, like more when I have pollen or just whenever it looks good, but in this case weāre at 4 weeks from sprout right now and Iāll wait another 4-5 days for more calyxs to form.
But itās more the end date that I roughly look at as seeds typically take 4-5 weeks to finish out so I try and approximate so they are done about the same time or a week or so longer than regular harvest times.
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OK, thanks man I have tried to pollinate my TER at four weeks from flip, canāt see much happening, the buds were tiny when I did it.
I am just about to flower another so I may wait another week and do it at 5 for the buds to develop more, they can stay in the room as long as they like to develop the seeds, thatās not a problem for me.
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yeah ive learned its better to wait till you have some good bud sets going, even if a bit late than doing it too early, and just letting it run out in the end.
Also the further up the plant where you pollinate the quicker they seem to mature, where as lowers take more time too.
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Cheers good to know, I will be having another crack in about 5-6 weeks then 
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Day 32/30
Well things going along, gonna pollinate the back right plant at some point, but maybe another couple days till then.
Also playing on the right side, 4 seeds planted two have broke the surface but in the end i aim for only one, also want to see whats possible running at a lower DLI so my wattage per sqft is and will be quite low, mind you also running 18hrs of light so a little offset there
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Been reading and thinking about DLI and what or how that equates to the plants we all like or more specifics on things, but the further down the rabbit hole you goā¦
So basics, a stronger light source applied over a shorter time span can equal a less strong light source applied over a longer time span.
Throw photos vs auto into the mix and or say feasible limits of plant growth related to atmospheric concentrations of CO2 or even say potential normal somewhat āelevatedā levels found in houses, and rates of photosynthetic activity with those different concentrations vs light level intensity, has been making my brain spin those gears a little.
Also barring measuring accuracy due to devices, processes, and or conversion factor inconsistencies or accuracy, and grow conditions, ive been pondering some stuff i can do to test or see essentially what would be a good metric to go by at least for recommendations for say appropriate light levels when you factory in the best you can all those variables.
Thus ive been thinking about DLI values and how it would probably be a better thing to start equating to instead of w/sqft , lux, ppfd, with lights on time spans considered and all relevant depending on how your comparing.
But yeah rambling whats all your thought on that ?
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I have no clue what you just said. ā¦ but it will probably turn into an interesting project lol
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So with that word salad apparently thrown on the floor by meā¦
The reservoir now filled with coco above im gonna try seeing how much or how well a plant will work with a DLI of say 20
how im initially equating it and how it works out in other comparable factors, is currently my right side cab is on 18hr of light a day, and at around soil level i get 21k lux at 24" under my 3500k bridgelux eb2ās measured with my phone āwhich will be different than other peoples phones and conditionsā but its something i can measure and go by for me and if i equate that and work it backwards it puts me at an average of around 20 as fars as DLI goes, now wattage wise its quite low compared to my pass endeavors as its only 45w or 15w/sqft again factor in a 18hr time span, and light distance.
But i decided ill start here as a starting point, even though the light intensity will change as the plants grow closer to the light as i dont have the option to raise my light further, also figured put my money where my mind is and since im running such low wattages i actually removed 6 out of the 14 strips that compose my light, and my driver is turned down as well but current setup i max out at 58-59w and am at 45w, compared to when i originally built these lights with a though of overdriveing them and running them at 120w.
So kinda flipping my perceived thoughts on thingsā¦
Oh and the coco filled reservoir is so at least my plants wont be limited root volume wise like how i normally control them, but due to no drainage holes and or specific autowatering setup to force cycle over, im just gonna be hand watering and having to watch the plants more carefully, so its just gonna be interesting to say the least
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That sounds like a lot of working out.
How will you deal with flowering plants, just stay with a 12/12 schedule or allow it to fluctuate down from 14 hours a day, depending on light strength. You would really need to move times down, as that is the natural light progression, or the plants will get confused and stressed.
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well running autos at 18hrs i dont have that issue but consider a light thats run for 18hrs with a canopy level light reading of say 27k Lux would essentially be equivalent of a canopy level light amount of 40.5k lux but only run at 12 hrs.
So depending on how you work it or look at it, you could either reduce hours as it gets brighter due to the plants growing closer to the light, reduce the output from the light by controlling it to keep a consistant light level at the canopy, or you just figure out a starting value DLI wise and just let it ride and see what happens allowing the canopy to receive brighter light as it grows closer to the light.
Iāve kinda already done all of them depending on the situation but gonna start with the latter of all those right now.
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So I do something similar when switching to flower. I dont exactly calculate DLI from PPFD/Lux, but do maintain the same wattage when I switch to flower. If you are running 18 hours of veg, then bump your lights 1.5x for flower. For example, I have 100-watts in veg for 18 hours, then use 150-watts for flower for 12 hours. It gives you the same kWh per day.
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Haha, I am doing that without realizing it. Veg is 18 hours at 20w sqft and flower is 30w sqft for 12. I tend to run these bridgelux lights higher up in flower just in case of foxtails.
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same ball park and close enough, as you donāt have to get technical and figure out efficiency rates at running at different currents and all that, can just be a light level reading or like reiko just wattage measurement multiplied by your factor to make it equal.
Iām exploring this cause i want to see whats possible running at less vs our more prevalent social culture of āexcess in all regardsā and was kinda punted this way with when i figured out i may of been running way too much light.
@Shadey Also brings up how can one accurate recommend what light levels and or power amount needed for someone say building a bridgelux setup. Super cheap anyways butā¦ we may be able to get by with even less.
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