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citi high currents go north of 800W. the 3618s have been topping 500W since gen 4 from 4 or 5 years ago

you cant have it both ways. renewable fuel subsidies are directly related to climate change science, for what its worth

Cs are also substantially more effcient than the Bs or the Ds

ive got gen 4 in 4000k 80, 3500k 80, 3000k 80, 3500k 90 cri soon to be up on site, cheaper than digikey

we should all be so lucky to have 8cents a KWH! i had a guy call me me from houston once and told me his electric was four cents a kWH and being the bad salesman i am i said "you want LED why?"

it sounds like you have a very cursory understanding of wiring basics. you would never use the type of wire you describe for strips (there is no such thing as '220 household solid core wire' BTW, most wiring in that class is rated for 600V). From your description it sounds like you were...

not following you....

sounds about right

ok that light has 10-20% on a hortilux 600 with a bulb of average age. modern leds have 30-50%+ on your light. just kinda givin you a feel

vs what? what 1.5ish umol/J lights have you run in the past?

youve prob just reduced your heat stress. at a given efficiency you wont see a huge difference between hps or led. but leds are more tolerant to high temps (80+)

datasheets should have efficiency, but its usually expressed in mW output for monos efficiency = mW output/mW input

keep an eye out for huge 4/20 sales this weekend

for a given color/spectrum, using umol/J or efficiency % are the exact same thing (just different units)

'sall good i agree with you. the 90 cri cobs have plenty of far red imo. plants can only take so much

what you need is a basic understanding of what a sphere is and how it works there is no "distance at which you make a umol/J calculation". Thats like judging gas mileage by the speed on your speedometer

ive used a sphere, like OP, without calibration so in my case useful for relative purposes. in OPs case, useful for marketing purposes

how are you calibrating this setup? anybody can take a random spot readings in a sphere. ive been doing it for years (and am always careful to present the data as relative to other data in the same test - its not a umol/J measure)

how much more efficient will the 80cri of that series be?

correct open areas, aisles, etc.