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what makes you think its only equivalent to a 1000W HPS? do they actually provide PPF output data

theres no one answer to that. depends on relative intensity and spacing of emitters as well as distance from lights to top of canopy. for example, 500W of cobs and 500W of boards/strips at teh top of a tent lets say 9 cobs vs 9 boards to keep it simple. you could also use 9 strips spread...

that driver needs parallel you have them in series yes the screws under the caps dim with a #0 screwdriver

with efficient lights you wouldnt need more than 1200 30W/SF of efficient LEDs can give you a solid 800 umol

yes weve known that cheap LEDs can grow HQ pot for over a decade now doesnt necessarily mean cheap LEDs should be considered as a valid option when in many cases HIDs are cheaper and more efficient than many of them

yes, we are measuring emitted photons of course. i know of know way to measure absorbed photons other than CO2 balance and nobody is doing that

1000 green photons would be measured by a par meter as the same as 1000 red photons 1000 red photons are more usable to the plant. if number of photons were the only criteria nobody would be using lower color temps in phosphor white, 6500k 70 cri (or blue emitters with no phosphor at all)...

im not sure why anybody would be surprised that lights grow plants. the "evidence" that "yes this light can grow a plant" appeals to people who literally know nothing about lighting. it is absolutely uncorrelated with "this is the best (or even a decent) lighting option for growing plants" you...

or phone app $140 isnt really an expensive meter imo. people spend that much all the time for ph and tds meters etc. vs not measuring? the wooden spoon can bake a nice cake in the right hands

again direct par measurement is simply one data point. you can get some huge par numbers with green and blue photons but doesnt mean they are as photosynthetically active as orange and red photons. 1000 umol of sunlight vs 1000 umol of red-heavy light designed for horticulture do not behave the...

yes over time and from unit to unit they probably dont have as flat of a response to the whole spectrum as the high dollar meters, so there will be a little bias, but it should be a consistent bias. for your purposes there are a lot of other factors that will determine your success relative to...

SPD chart is specific to a given spectrum so there isnt just a single one for LEDs. you get it from digitizing the spectral curve so a 3000k is differnet from a 3500k is different from a 4000k same for 70 vs 80 vs 90 cri even one manufacturers 3000k 80 cri might have a differnet spd than...

those actually arent awful theyre repeatable at least

im about to do a large driver order in the next few days but you need to pm me her exact travel itinerary so i can confirm

A+ extra effort shitting on people you dont know for no reason!

did you factor in all the extra time you wasted posting about it, lol?

i get to see this amazing being in the flesh next week at the historic Roxy in LA i love music. a lot... but im struggling to think of the last time ive been so excited for a show

LA is easy. give me a heads up and i'll have it waiting for her

where is she flying to? i can work with you..

for 24/0 veg you could prob get by with as little as 4 75W cobs in a 4x4 4000k 80 or 90 cri for veg you need less intensity as you still hit your target DLI at 24 hrs