Aolelon
Well-Known Member
lets see it.
CXB3590 versus Quantum Boards
- Thread starter newguy41410
- Start date
genuity
Well-Known Member
skoomd
Well-Known Member
Lets see 3lb a light then. Because they werent hitting that in that commerical grow. And they were using LEDs. And better quality bud.
I would love to see anyone who has done 3lb a light using HPS/DEHPS. And not just say they do.
AC is that bad on a commercial scale... A 1000w dehps per 5x5 space needs about 5900 btu of AC. And if theyre running co2, well it's required to have... And you need more BTUs including the co2 generators....
And those numbers include using AC with the LEDs.
1300<200$ is good initially. But it will not be long until the LEDs pay for themselves and you save money... And you can DIY a spydr x equivilent for like $500-600.
genuity
Well-Known Member
Is that the only big grow going on in the world?
I don't have to show shit,just look around,as in the real world..
Pay for themselves, after what 3-5 yrs
light can only take you so far,it's a bunch of other shit that has to go right also..
Show me a true side by side,of a led vs hps/DE (not on you tube)
Aolelon
Well-Known Member
Like you said. Nobody has to show you shit. Just look around, as in the real world.
skoomd
Well-Known Member
Ofc not. But ive yet to actually see a legitimate 3lb pull from a 1000w. Only people claiming they get that. Prove me wrong. There are however people pulling 4 pounds plus from 900-1000w of LEDs. I always see 1000 grams from 1000w dehps max. Never been able to find pics of a grow that goes over that.
Pay for themselves in 1-3 years. For a $1300 light, that's not too bad. And if you build your own for $500, it will pay for itself in a year or so.
You''re right. Light is only part of the equation. But it's a HUGE part. If you have a 670w spydr x plus and a 1000w gavita dehps in the same exact enviormental conditions and use the same clones, it doesnt matter if mistakes are made as if the same mistakes are made in both grows, the leds will still meet or exceed the dehps in yields using way less power.
There isnt any up-to-date LED vs DEHPS comparisons that are actually done properly or have yields published. But it isnt a surprise, anyone rocking good leds wouldnt waste their time testing a gavita... theyd just run more leds lol.
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skoomd
Well-Known Member
Typical HPS diehards lol.
Claims all of the data is bullshit, but provides no insight into why or how.
But if they want to live in lala land and say that.... then they can have fun with their power sucking, hot as hell, shitty orange spectrum lights.
Here's some quotes that shed some light on why HPS produces lower quality bud than say LEDs. HPS's spectrum contains about 5% blue light and have a high far red to red ratio.
- "Blue light (430nm-450nm) This range of spectrum enables cryptochromes and phototropins to mediate plant responses such as phototropic curvature, inhibition of elongation growth, chloroplast movement, stomatal opening and seedling growth regulation. It affects chlorophyll formation, photosynthesis processes, and through the cryptochrome and phytochrome system, raises the photomorphogenetic response. It also stimulates the production of secondary pigments which can enhance colors and is known to also stimulate Terpene (i.e. fragrance) production."
- "Blue wavelengths also affect the biosynthesis of compounds responsible for the flavor of certain fruits, increased anthocyanin concentration, as well as that of other compounds which are not directly produced by photosynthesis alone. "
- "Blue light has a positive help on production of leaf, resin and fragrance in plants, which is very important for flowers and other plants in their pre-flower growth stage."
- "High amounts of far-red light can also decrease the amount of chlorophyll, anthocyanins, and antioxidants in the plant6. Chlorophylls and anthocyanins are pigments that make a plant colorful, which can factor into the novelty and value of the harvest."
Hotwired
Well-Known Member
I don't get it. How much cooler is 600 watts of led compared to 600 watts of hps? I would think that they produce the same heat and use the same amount of power. Please explain what you say above. Thanks.
skoomd
Well-Known Member
They would produce the same heat. But LEDs only require half the wattage or so to equal the output of an HPS bulb.
So you should be asking "how much cooler is 350 watts of led compared to 600 watts of hps?" and the answer is about half as much heat....
Hotwired
Well-Known Member
You answered my question in a round about manner but I get your drift. According to YOU, I would get the same yield with almost half the power usage of an hps. But basically 600 watts of led = the same heat and power usage of a 600 watt hps.
According to YOU, I would VASTLY out yield a 600 watt hps with 600 watts of led. This is what I want to see for myself in a side by side. That's why I asked earlier about which kit to use for a comparison. I want to see this HLG 600 wipe the floor with my 600 watt CMH and HPS. 3 tents, 3 different lights. This way you might be able to help me if I have any problems on the led side. Once I get this going you will be my main "man" for the job. What do you say?
According to YOU, I would VASTLY out yield a 600 watt hps with 600 watts of led. This is what I want to see for myself in a side by side. That's why I asked earlier about which kit to use for a comparison. I want to see this HLG 600 wipe the floor with my 600 watt CMH and HPS. 3 tents, 3 different lights. This way you might be able to help me if I have any problems on the led side. Once I get this going you will be my main "man" for the job. What do you say?
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skoomd
Well-Known Member
Yup yup and yup.
All 4x4 tents im guessing? My friend has 600w of samsung strips i built for him in a 4x4 tent. He pulled 1050 grams dried. He's paranoid though so i cant share the pics because it was his grow. But go check out the quantum board thread man. Lots of great grows.
So 600w hps is fairly efficient but after hood losses (15%) your ppf is not what the bulb puts out down to your plant. 600w of strips should get you close to 2.5- pounds or so. And it will pretty even compared to the hps. And it would be ez to go up to 750w with a 2 driver configuration. Then you are looking at 3 pound plus territory.
How does your 600w cmh do? I was thinking of when i get more space ill do a 4x4 with a 630w de cmh or 1000w just to see the quality of the bud. 1000w of cmh is about 3 lb too but 350w more.
But yeah, if you need help with any issues i can help ya. Youll be impressed i bet. My friend runs a 630w cmh in a 4x4 and it one fucks with my eyes from the uv lol and two it isnt that bright compared to my smaller 3x3 320w led build. It is blinding just by looking at the walls lol.
Hotwired
Well-Known Member
Yes, all 4 x 4.
I like the prebuilt hlg 600. I don't want higher watts due to heat issues. Same watts = same heat so I can deal with that.
Thanks for offering your help. Much appreciated.
The 600 watt cmh just came into my hydro shop. It's the new Eye Hortilux one. I will buy that this week. I need to find out if they can work with my current hood and ballast tho. I wont be sure until I go to the store. I wish I could afford to buy the hlg 600 tomorrow but I'm about $300 short of the $720 needed to buy that system. Maybe next month if I don't get hit with any more medical bills.
I'm sure I can keep the tent the same temp as my 600 watt hps. All I will be doing is taking the duct off the hood and then removing the hood and bulb and replacing it with the hlg 600. I have two 6" fans that will blow towards my duct outlet over the top of the board to help cool it. My fan is 340 cfm. It cools my bulb so it should keep the tent at a similar temp.
I will be using the same strains I've been using for the last 2 years. All Bodhi. I already know their capabilities so any changes will be noted.
Would love to start this tomorrow but getting the hlg 600 is going to be a problem for a bit.
I like the prebuilt hlg 600. I don't want higher watts due to heat issues. Same watts = same heat so I can deal with that.
Thanks for offering your help. Much appreciated.
The 600 watt cmh just came into my hydro shop. It's the new Eye Hortilux one. I will buy that this week. I need to find out if they can work with my current hood and ballast tho. I wont be sure until I go to the store. I wish I could afford to buy the hlg 600 tomorrow but I'm about $300 short of the $720 needed to buy that system. Maybe next month if I don't get hit with any more medical bills.
I'm sure I can keep the tent the same temp as my 600 watt hps. All I will be doing is taking the duct off the hood and then removing the hood and bulb and replacing it with the hlg 600. I have two 6" fans that will blow towards my duct outlet over the top of the board to help cool it. My fan is 340 cfm. It cools my bulb so it should keep the tent at a similar temp.
I will be using the same strains I've been using for the last 2 years. All Bodhi. I already know their capabilities so any changes will be noted.
Would love to start this tomorrow but getting the hlg 600 is going to be a problem for a bit.
skoomd
Well-Known Member
Solid. Yeah my friend is using a vortex s line 6" fan that is 347cfm to cool 600w of strips in his 4x4. His temps are 80-85f no problems. Which is where you wanna be under the LEDs.
Should be a decent comparison.
It is very true some HID systems are 2 umol/joule. But bare bulb knocks that down pretty good. A dehps or decmh is definitely in that range though.
But if a massive commercial grow that is top of the line is beating out 1900-2000ppf 1000w dehps lights with 1500PPF 670w LED lights and increasing potency/quality at the same time, that's something else. 3 pounds a light for LED on that scale is quite impressive. Still waiting to see a 3lb 1000w de/hps grow.
The ROI is probably there for most, but you just have to run all the numbers to find it. But im saving $200 a year using my small 320w led light instead of the 600w hps it replaces. So it's pretty substantial.
CobKits
Well-Known Member
you cant have your cake and eat it too.
in other words you cant write off the entire cost of your LED in the first grow thats like comparing growing weed to not growing at all.
sure you can grow thousands of dollars of weed and cover the cost of a $1000 LED in the first grow.
but you need to compare it against the $200 HID that would have grown the exact same amount of weed. power cost and bulb maintenance over time is the payback.
CobKits
Well-Known Member
the de hps are 2.1, the de cmh ive seen are topping out around 1.8 (but watt for watt prob still give de hps a run for its money on spectrum alone)
those are (new) bare bulb numbers of course. most DE HPSs throw down ~1.7 in a reflector once the bulb hits steady state, ao 1.4ish on the CMH probably