Lucky Luke
Well-Known Member
That's what he said...
LED Thread regarding stalk weight difference between LED & HPS
seedfinderss
Member
I dont think he'd take the truth if it smacked him in the face ... as if technology just stops all the sudden, COBS and BLUPLES are in the past.. And what would you know every industrial vertical farm is running LED's anyway.
must be some retarded scientists running those labs by that guys logic...
Lucky Luke
Well-Known Member
it all got fuzzy when he said he could run a 1000 w HPS in a tent and be room temp....and then wouldn't answer the Q of what size light he does use and then said that I was running high light intensity with a 600w HPS..how is a 600w HPS high light intensity for a grow light? Strange stuff.
Kingrow1
Well-Known Member
And still the best grows ive seen here are hps, if led was clearly better it would be obvious.
Heat is not an issue, mj grows in some hot places, the fact you struggle with heat means your plants arent the healthiest and the less light and more multiple sources of led go easier on you.
Seriously i can keep going allday, youll not change the facts....
Heat is not an issue, mj grows in some hot places, the fact you struggle with heat means your plants arent the healthiest and the less light and more multiple sources of led go easier on you.
Seriously i can keep going allday, youll not change the facts....
Lordhooha
Well-Known Member
Cobs are still relevant so are hid’s, but yes things are changing. Becoming better and more efficient by the day with everything. Cmh are more than likely be the last jump for that kind of lighting where led is just getting started. Leds are the young kid. First they were playing around. Then they became a teenager and thought he could kick his dads ass and failed. But now that teen(led) has become a man and is ready to beat that old mans ass lol. Those that are unwilling to change will eventually be forgotten and will only be found in history.......goodbye king sorry
Lordhooha
Well-Known Member
As I’ve stated heat nor energy are a factor for me. My rooms are heated and cooled by geothermal, and everything in my house is ran off solar. But your right weed grows in the mountains in the hottest places. I mean they are weeds right. But those have changed a lot over the years too. With hybrids and all that they’re not the same mountainous or desert. Dwelling weeds they once were. Things evolve sadly you seem to refuse to accept that fact.
chiqifella
Well-Known Member
citation pleaseFood grow under led has more nutrition. .
Kingrow1
Well-Known Member
I disagree led has evolved much, scientifically its still a simple diode now with a fee things strapped to it.
The hid has a lot more promising tech heating gasses and elements to increase spectrum and intensity coming up.
Lordhooha
Well-Known Member
https://www.sciencedaily.com/releases/2013/11/131119101108.htm
https://gpnmag.com/article/led-lighting-and-its-effect-plants-growers-and-world/
Here’s a couple. I had some others for a research paper I’ll have to dig up.
They grow FANTASTIC salad greens.
Lordhooha
Well-Known Member
There’s others. Like I said I’ll have to dig the others up that showed the effects on other veggies and stuff. I had Some that showed how it affected brix levels in both plants as well. There’s plenty of studies out there.
Lordhooha
Well-Known Member
Kingrow1
Well-Known Member
But thats the benefit of Rollitup, you have all the hps grows you can possibly dig through without the need to go offsite.
That would be me main point in that led hasnt surpassed hps yet.
HydroEnthused
Active Member
I have 2 identical side by side rooms of 6-600w(3600 in one room and 3600 in the other next to it) HPS batwings over 18-20gal(36 bins total) rubbermaid dwc bins with 2-8" air stones bubbling in each bin (15 gallons in each because Krusty said so). All the air flow is metered so I can see the precise air flow in each air stone(my air stones never and cannot get clogged because they are fed with 2 stage MERV 13 air filters then that air is scrubbed clean with a carbon filter) and the water is always changed on time and the temps are always 84f canopy height and 77f at the base of the stem. The water is always 75f because of under floor radiant heat.The DWC bins are automatically topped off. Each bin is a separately controlled entity and each bin has no plumbing connection to the other bins.This is not a recirculating system. These conditions are hyper constant 8.5 months of the year. In other words, there is no difference in environmental or root zone conditions in each of these side by side rooms. Each room is 8' x 12'. In other words...I have invincible side by side conditions that allow LED's to go head to head with HPS on a much larger scale than you guys are used to. No offense intended. I almost forgot to mention that the rooms are spider mite proof. I've only seen them on the internet. I don't know them and I never will. Insecticide? What's that?
I am willing to conduct a side by side test putting 6-600 watt hps (I will use magnetic ballasts with new capacitors and new hortilux 600w hps lamps) against the supposed equivalent of brand new LED fixtures. Which LED fixtures and how many? The rooms are not almost identical. They are exactly identical in every way possible. The ventilation inlets are 3" round perforations(over 100 round holes evenly spaced to distribute air through the spaces between the basement ceiling rafters) in the ceiling so all heat travels straight up and out of the room the way hot air flows naturally.
I would like to put the LED v HPS argument to rest. I will do two side by side(600w HPS in both rooms) seed runs of Reserva Privada Sour Diesel in the side by side rooms starting in November 2018. After those side by side identical seed runs with HPS light, I will then change out the light fixtures of one of the rooms to a group of LED light fixtures that you guys (the experts) agree to be the best possible contender against my 6-600watt hps adjust-a-wings. All 4 grows will be done during the months that my environmental controls are able to maintain perfect conditions. Which LED's?
I am willing to conduct a side by side test putting 6-600 watt hps (I will use magnetic ballasts with new capacitors and new hortilux 600w hps lamps) against the supposed equivalent of brand new LED fixtures. Which LED fixtures and how many? The rooms are not almost identical. They are exactly identical in every way possible. The ventilation inlets are 3" round perforations(over 100 round holes evenly spaced to distribute air through the spaces between the basement ceiling rafters) in the ceiling so all heat travels straight up and out of the room the way hot air flows naturally.
I would like to put the LED v HPS argument to rest. I will do two side by side(600w HPS in both rooms) seed runs of Reserva Privada Sour Diesel in the side by side rooms starting in November 2018. After those side by side identical seed runs with HPS light, I will then change out the light fixtures of one of the rooms to a group of LED light fixtures that you guys (the experts) agree to be the best possible contender against my 6-600watt hps adjust-a-wings. All 4 grows will be done during the months that my environmental controls are able to maintain perfect conditions. Which LED's?
Chip Green
Well-Known Member
It is my contention, that unless the LED are custom built to that space, the HPS will undoubtedly win......
The claims of equivalency in off the shelf LED fixtures are greatly exaggerated.