LED Thread regarding stalk weight difference between LED & HPS

Excellent. Thanks for the info. To be honest, I would love it if the LED's worked out better. Give me a few days to decide what configuration would work best but I'm going to be aiming for using the same amount of watts to see if I get the same yield for the same watts. I'll run my ideas (for the LED config) through this thread so LED experts can give me suggestions if they think my plan needs adjustment. This way everybody will agree (based on facts and past experience) on what LED configuration I choose to go up against what has already worked for me in the past decade.
I'm just sorry that I wont be able to conduct the experiment until Nov '18 due to the need for perfect environmental conditions for at least 15 weeks straight.
 
HydroEnthused said:
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?
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If your using 1 x 600hps then compare it to one 600w QB or 600W of Strips.. Just do a W for w test. No need to make it complicated.
Please tag me when you start a journal or thread on it. (journal may be better as otherwise it will end in the usual shit fight...lol)
 
@ Randomblame
What say you? Realistic equivalent to an 600w HPS with Strips?????

We should also include Samsung LED strips, or Bridgelux EB series strips, for a true DIY self customized "lamp" build experience....
 
Lucky Luke said:
If your using 1 x 600hps then compare it to one 600w QB or 600W of Strips.. Just do a W for w test. No need to make it complicated.
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Agreed.

It should be a watt for watt comparison.


This - http://timbergrowlights.com/redwood-vs/

Or this - https://growerslights.com/products/horticulture-lighting-group-600h-quantum-board-led-kit


I'm positive that even the HLG-550 will outperform an HID 600, and it only uses 510 watts.
https://horticulturelightinggroup.com/collections/lamps/products/hlg-550
 
HydroEnthused said:
Yes, 6-600 watt hps in one room with the lumen equivalent of LED in the other.
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Chip Green said:
@ Randomblame
What say you? Realistic equivalent to an 600w HPS with Strips?????

We should also include Samsung LED strips, or Bridgelux EB series strips, for a true DIY self customized "lamp" build...
Click to expand...
You need to do W for W....If your using 600w of HPS you have to compare it against 600w of LED...otherwise your robbing the LEDs of what they do really well...efficiency
 
Lucky Luke said:
add another 90 watts of strips and golden.
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I haven't looked into it yet, but these HLG 550's are 510 watts total ? The 600 watt hps is more in the neighborhood of around 650-660 watts with the heat losses from the ballast core so 510 watts for the same performance would be a....(get ready for the banal)... game changer.
I'll compare the light distribution of a custom LED set-up against 6-HLG 550's. I'm thinking the custom built installation is the way to go, but I didn't look into it yet so I might be wrong. Oh! Wait a minute... I just thought of something...let's make it an LED v HPS v DE test!! Whaddya think?
Cost be damned! Let's have some fun!!
 
I have a 200 watt vero at about 120 watts in a tent growing 1 king tut (Sativa dominant)

I have 3 sativa dominat in a tent (trainwreck/jack herer)

It is not scientific but wow that king tut is thick in the stalk. And so tight for internodal distance i keep looking for errors. But water is good ph is good tds is good. I grew that king tut in my tent before and it was scrawny in the stem.

I personally am going to sell all of my lights and get a timber fixture to fit in the tent. 400 watts or 600 watts vero cobs because i really love that light. I love the 315 as well. But it is not as dense of plant. I could grow a monster with veros. Well 4 of them exactly

I am always contending with optimal heat. 315w to 400w is about he max where i have my tent so whatever gets that done the best is my goal. I have not tried quantum boards but from everything I have tried I love real cobs. Vero cobs. Best damned light I have ever seen and I have tried mars/mcob/cmh/

CMH is the best of those but 315 watts is good 400 watts is enough better. :)
 
HydroEnthused said:
I haven't looked into it yet, but these HLG 550's are 510 watts total ? The 600 watt hps is more in the neighborhood of around 650-660 watts with the heat losses from the ballast core so 510 watts for the same performance would be a....(get ready for the banal)... game changer.
I'll compare the light distribution of a custom LED set-up against 6-HLG 550's. I'm thinking the custom built installation is the way to go, but I didn't look into it yet so I might be wrong. Oh! Wait a minute... I just thought of something...let's make it an LED v HPS v DE test!! Whaddya think?
Cost be damned! Let's have some fun!!
Click to expand...
I do think it should be the total cost though, for an accuate comparison.
Light, heating, a/c, food, water everything.
You'd get an extremely accurate average, because of the large number of plants.
Then match the weight to the averages :hump:
 
HydroEnthused said:
I haven't looked into it yet, but these HLG 550's are 510 watts total ? The 600 watt hps is more in the neighborhood of around 650-660 watts with the heat losses from the ballast core so 510 watts for the same performance would be a....(get ready for the banal)... game changer.
I'll compare the light distribution of a custom LED set-up against 6-HLG 550's. I'm thinking the custom built installation is the way to go, but I didn't look into it yet so I might be wrong. Oh! Wait a minute... I just thought of something...let's make it an LED v HPS v DE test!! Whaddya think?
Cost be damned! Let's have some fun!!
Click to expand...
I'm subbed for sure if you do a journal. Production level grows have always been the battle cry of HID growers because it's the one type of grow that hasn't really been tried much with current gen led tech. GML is doing a side by side on YouTube right now between hps and HLG 550s that's fairly large but he had some grower error mid flower that I think is going to muddy the results. You could definitely answer a lot of questions.
 
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