led reccomandations- if it can hit 780nm im listening lol

I use a hlg uva bar.
I have not really seen anything over 730nm in the far red spectrum..
People mainly use it for the Emerson effect.
There has to be loads of research on the red blue blurple LEDs used to grow fruit and vegetables indoors now so maybe we can convert some of that to our plants..
 
I have only used HLG 550 V2 Rspec and I have two HLG Scorpion Diablos in a 5X10 now. I don't have much to compare it to, since they are all I've used. They definitely put off some heat though. Not sure how much cooler a bar style light runs but I can't run these in my space after May. I can't keep the room cool enough with my little window unit. The Diablos are also pretty heavy. On the plus side, they put out some serious light and make pretty buds.
 
HappyHappy said:
I use a hlg uva bar.
I have not really seen anything over 730nm in the far red spectrum..
People mainly use it for the Emerson effect.
There has to be loads of research on the red blue blurple LEDs used to grow fruit and vegetables indoors now so maybe we can convert some of that to our plants..


FullCirclePharmer said:
I have only used HLG 550 V2 Rspec and I have two HLG Scorpion Diablos in a 5X10 now. I don't have much to compare it to, since they are all I've used. They definitely put off some heat though. Not sure how much cooler a bar style light runs but I can't run these in my space after May. I can't keep the room cool enough with my little window unit. The Diablos are also pretty heavy. On the plus side, they put out some serious light and make pretty buds.





i mean its not the tech even im against but at least cheap leds haven't gone up on me lol
 
-you mention the radiaton emmited from lights - now i have put temp sensors thermopro ac infinity ect under lights and seen huge temp spikes but dont feel really hot a few feet under the bulb, and pulled back or out of direct light will drop 8-10f *is it actually just heating with IR light or is just radiation interference i ask as i noticed the ladies are purple and cold af looking not drinking as much, yet it would say 78-83 even under the light - idk if "false high temps" is possible (if so will just move sensors around away from direct light prob, but usually i would put them at canopy and floor in the past with led, lol just what you were saying made me wonder so hopefully someone may know this


-for feeds i usually use fox farms as a "base" =but have been using well any brand i can find to experiment ideally 0n-highp-and little less high K, ill add like a 0-3-2, to a 0-10-10, and they seem to like it - trying to find idea P=K ratios but don't wanna get too off-topic but am trying also different nutrients - esp as flower goes, eg after like first 4-6weeks halt all N for the most part, -for strains i have made a few of my own, and some s1 ect of a few cuts, sr-71 bx is "baseline"- DO plan to get some katsu seeds, was going to had a light go up on me so either getting a better cmh and or led,

-one thing i wanted to mention also you were saying was the AMOUNT of far red, i am trying to zero in on both which nm peaks are "most effective" - DIFF terps at diff light spectrum is what i have found from all the tests ive read, so all light matters but noticed whatever terpenes are from 700-800nm or the effect it has with other lower light spectrum colors, very impressed with it and will keep researching spectrum, but i also yeah am looking into ALL aspesects like nutes training ect just don't wanna ramble and go off a bunch haha, trying to do that a bit less - this has all been a huge help tho
deff leaning at an HLG RSPEC 150w for sure + the 315w i have now to test that out vs 2 -315, wonder if it can fully replace it - hey if i can HALF the flower power and get the same results i am nooooot complaining ahha, no contest led is "more efficent" i just wonder if it is 2-1 on cmh/cdm/lec, it seems to be 2-1 wattage power to HPS , but cmh is 315-500ish watt hps , it seems the most promising "far red" led ive seen other than yeah a diy cob- which i also have considered honestly, and or

SUPPLEMENTARY IR? ik uv for a 12 hour cycle would stunt or kill so i cycle it, or just 2hrs works , i wonder about just saying fuck it, and using some kind of supplementary ir i guess led low power pannel for diff amounts of time each harvest and compare results,

would go into this forum too as far as lights a "led supplementary IR fixture" AS THEN i have a lot more freedom in light choice, and its possible a full time full red esp at the wrong amount can be worse than none as well, the cmh i have has around that amount seems to be a good "sweet spot" at 8-9%, they are boosted in 600nm+ range and have gotten very good flower , seems to be an "improved hps" - with the high orange and a red peak as well, - picture of spectrum here:
 




also tried this with more terps much lower over yeild, tried one 3000+4200k seems to balance out better than two of the same spectrum for smell/terpenes (pretty sure they attribute the smell so i go by smell lol like the stronger the higher levels)
 
Timber Cob LEd lights were my first LED's and so far are still my favorite lights. I don't do numbers, I just grow plants and see how they do. Both Timber and HLG have worked well for me. Timber is out of business now which sucks. I have been having good luck with the HLG Scorpion R spec. I agree about the heat issues. I only run one in my 5 x 10 . I can work with it. If I had 2 of them, there would be too much heat.
 
Jackalope said:
I agree about the heat issues. I only run one in my 5 x 10 . I can work with it. If I had 2 of them, there would be too much heat.

Well I hope I can control it this round. I am going to flip some plants in a week or so.

I have two in there now at 50% while vegging. I have the connectors to run it into my AC infinity controller so it will turn them down if the heat gets too much but I have not replaced the knobs yet with the piece for the connector. I run a window unit at full blast all through my flower cycle and I am only growing from October til April or so because I can't keep the tent under 85 after that.
 
the one light am SERIOUSLY consdering is a "260w" Rspec by HLG -

i like that the BLUE is not as HIGH AS THE RED- for starters lmao, like that was the first thing that had to be met, then power while not 315w should be 2:1 hps , and even if 1:1 CMhH 315-260w is really less than 100w total drop and if anything it may be 2:1 cmh which then yeah ahah i deff would love it more, but ideally getting that plus a cmh fixture (more pro grade, with better bulbs and features to prevent arc in loose filament bulbs - normally not needed with hps+mh why i didnt get it before- but its a danger tho i found out, as cmh is or SHOULD BE lol dual jacket- they sell single jacket I wouldn't use those... ive had one blow on me cheap $38 bulb...

so thinking of using uv t12 = 260w RSPEC FR HLG LED + better 315w cmh - while less "total light power" - lets test the EFFICIENCY OF GOOD LED! - as far as price to performance even i can't complain for that to respect an ENTIRE flower tent lol , find also LED is at least better than 3000k-3000k+IR CMH (smaller but MORE INTERNODES and overall slower but better spaced plants with less unneeded stretch , so those leds are still going to use but will test a veg of led vs 4200k *that is a better spectrum for veg ideally vs 3000* - , but yeah i think a few have recommenced hlg lights and or Rspec actually, and i like the cut of its spectrum also the fact it says FUCK VEG, yeah that is an led ill try banging on the next crop , again wanted to say thank you TO EVERYONE i have checked out all of them , and hope this helps anyone else looking for a medical flower setup, and eventually plan to test more led panel to see if it can keep up terps (i mean cmh 3000k - the boosted red peaks are also on these for the most part except the last parts (idk how important 780nm-800nm is will find out)
 
to happyhappy and eazy:
-yeh i am gunna have to look into those suggestions i am married to spectrum not a brand lol - the board i found was under 200- for 260 , for some reason running over 300w of led starts causing line problems - its really odd about stuff making stuff more difficult but i feel the 260w isnt gunna pull too much and for a 4x4 should ideally cover at LEAST 2x4 - and i would wager a bit of cross over high up, between cmh and led - i mean if it does make like half the tent way way better in every way tbh id obv convert fully over time then - the cmh is also for supplemental heat - jerry rigged into the other nursery tent to keep temps at least above 70f during lights on in winter - but two units can yes run a little toasty if its not a very cold night - so like power, heat and spectrum (plus leds being much more efficient light conversion wise) -am excited to try a combination and see how it works this winter - still not totally married to one exact panel if i can find one at the same or less $/watts with a good brand/diodes/spectrum ima grab that so yeah i am looking into these other brands (and ideas) - am not above diy as well but prefer for like fire and liability to buy pre-assembled leds/fixtures
 
UPDATE:::

1x CMH 315w adjustable winged hood - early to mid flower

center light: 260w RSPECFR - <3 it SLAPS haven't even finished and it is like hulking the fuck out of the ladies so much im sold haha - biomass AND IDEALLY high high TERPS - HID+LED at least in winter is perfect imo and

around 500+W real power
heat is less than cmh esp with even a circulator fan blowing air over it - in eh 68-60F ambient RspecFr+CMH are steady at 74-77F without much need for additional cooling


i wanted to just clarify - before this LED i could not find one that was affordable with - 3000k cmh spectrum i love *it does i thought the cmh fired early its THAT damn close so anyone like me that is ocd af about far reds and low blues - THIS LIGHT , i will just stack em over time its a WIN and fully reccomend - will update later on when i try a run of JUST the RPSEC *(it covers the whole 4x4 and in theory a 130w is 2x2 X2 - exact min coverage but will let the ladies tell,) all in all very fucking happy and deff FULL led in the summer lol but in winter i like the HID+LED combo and if your bored and or having problems like i was keeping them above like the 60s lights on with old pulrples , ehhhh- pure HID - too much fuckin heat and hotspots low yeild compared to led, too much stretch even with cmh-

5/5 on the "RPSECFR260w" - thank you to all as i was able to compare QUITE A FEW LEDS and well this checked all the boxes and love running it a breeze, highly reccomended *X2 as pure main lighting , deff enough imo - or 1+cmh hid lamp - for winter at least this has had the best results already- ,

plan to do CMH VS RSPEC tests as well eg using one 315w vs one of these pannels to test -thc level -terepinoid levels -overall biomass -overall health of plant

i mean i love love love cmh - but this thing is basically the "LED REMAKE" - and tbh can ADD HEAT easy - removing it is the bitch haha so worst case if it doesn't shithouse buds with low terps like the old leds will consider "full led" year round even after testing in hotter months


didn't mean to type a book but wanted to give some info and thanks to the helpful people here - really appreciate it and learning a whole damn lot which is great! lol also not married to any one lighting tech whatever is best $ for $ and OTR if they drop down the price a bit on it (got it on sale but its still 250) that would be amazing - great sup light and or X2+ main light gird , can't say how impressed i am i mean FUCK there




there is a night and day DIFF between LM301B and H diodes ik H is horticulture
b is BUUUUULLSHIT?- yeah if i ever go led Lm301H samsung or other brand (i think OSRAM? does the FR didoes? -its kinda vauge) but like QUALITY DIODES

QUANTUM BOARD -

coming from shit leds i tried all the "amazon leds" like vivosun, ac I , even a 100w spider at one point - returned a lot , stuck with a king led 2000w muti led setup (for 2021ish best you could afford under 200 and in hindsight would have just gone HID at that point and or saved up more for a GOOD led)

the one thing i DO STRESS still is there is not a lot of "Standard" as to what led lamps are "good" - and like

-TOP BINNED DIODES -
The "b" man i wouldn't use those for veg even- , H is as OP as HID lmao, HUGE DIFF and like "PSA" GET H DIODES OR HID BUT NEVER CHEAPER LED- while it may still "work" - shiiiiit 260w rspec has the coverage of 2x 280w plurple hybrids
so like savings and efficeny even if costs twice as much its gunna do better and have same coverage around same price all in all lol i regret not saving up but hey - live and learn-

i like the quantum boards so much (will have to try a bar and compare as some say one is better than the other)
but yeah i hope this also helps not just any newer growers looking for affordable flowering lights if your not a picky bitch like me any option here all these leds could defff make fire can't go wrong if spectrum isn't #1 lol - but also helps anyone that could use a "boost" - with even the dimmer or can wire on RJ control - deff a GREAT SUPP light and idk about horizantal mounting for supp - but i would be interested in trying that if possible as well

(using one or two main top pannels and then weaker or dimmed ones on the sides for supp lighting - i used to use supp lighting of various kinds and found it works well with shorter indica style plants best -if its sativa and tall it gets some more at the bottom but not worth a whole setup change imo - since i go shorter

wanted to add in suggestions and ideas for like supplemental lighting setups eg light strips , cmh apparently can side mount? idk how to safely do that but i feel supp/multi directional lighting can really help SHORT+WIDE Plants reach full potential and some led strips are A LOT cheaper than a huge main light -

trying to also see the "max" as i don't use co2 , feel like any more than 1-200w more tops will start being counter productive still got a lot to learn but this RSPEC IS THE SHIIIIIT <3 will bang on it till it DIES lol


- found this pretty informative: https://www.onestopgrowshop.co.uk/blog/plants-and-far-red-light -
 
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