Between Sun and Moon HPS/LED comparison grow.

[hazy]

One chop tomorrow, the rest next week

One chop tomorrow, the rest next week

Howdy folks. I took a look at the trichs this morning and was a little surprised at what I saw. Just a little, no major finding here. I expected the HPS side to be more cloudy and amber than the LED side based on the fall colors thing already going on under the HPS. However, all three plants under the LED have riper trichomes than the plants under the HPS.
The Sugar Shack, which I usually take at 50-55 days, and will take tomorrow at 55, has mostly cloudy, some clear, a few amber. Noticably more amber trichs on the LED SS.
The C4 and SD on the HPS side have no amber, 50-70% cloudy.
The C4 and SD on the LED side have some amber, 75-90% cloudy


As this nears the finish, I'd like to thank all the peeps who've come by and said hello, and checked it out and made comments. Another much more highly respected member here than me has been subjected to flaming and other nonsense, on his comparison grow thread while my thread seems to have been mostly immune to those 'trolls'. I was going to call them dickheads, but didn't want to be seen as calling them bad names. If they have been here, I thank the mods for clearing them and their posts away.
​

 

[Zealious]

NO haze, thank you for the stellar show..

Sounds like i was wrong about the ripening. IM gladd, I associate the coloring to the damaging intensity from the hps then. LED girl has made a truly impressive product.. Hopefully she will not get taken out from competition in the led market, esp from advanced nutes new leds.

The trolls are gone because LEDS are getting competive.. And VERG. you are right about being stronger under led.. the better spectrum makes the plants healthier and give off unstressed trichomes.. you also have to consider the damaging effects that HPS actualy has on trichomes.. the intense light actualy damages the plants and trich production lacks.

 

[dr.penthotal]

Impressive thread, seriously.
I appreciate the scientific approach, and good plants also!
Can't wait to see smoking reports.
Peace
Dr. Penthotal

 

[grow2bfree]

Hazy - I too, would like to thank you for the share and care. Three cheers for Hazy.

Peace

 

[MediScrogs]

King Hazy, slayer of LED trolls

King Hazy, slayer of LED trolls

Hazy, thanks again for running such a cool show here, it's been a lot of fun to watch the progress and see more of the potential of the technology brought out in the hands of a capable grower. I can see why LEDGirl is proud of her design work and willing to have people test her lights on her dime. The results speak for themselves. The trolls definitely had nothing negative to stand on here! muhahahah. Even if the hps does outyield in the end, I'd say the results of the comparison...are more than comparable!

 

[Pipedream]

Props go out to you on this thread and the grow.

Just waiting for your final write-up and opinion on the comparison.

 

[rastaidd]

WOW WOW WOW WOW WOW WOW WOW WOW
che belle!!!
very very nice man!!!
good job!!!!

 

[Marijuanasaur]

So the LEDs are ripening faster? hmmm. this greatly contradicts a lot of the tests of the HGL lights i've seen where the ppl claimed that the lights actually never finished ripening them. but i've seen several of those...

 

[apollonio]

looking foward to the harvest report hazy!

thanks again for doing such a great job with the pictures and details... very informative indeed!

 

[hazy]

The Sugar Shack is chopped!
Chopped the SS last night. Took a bunch of pics. You guys think I'm overdoing it with too many pics?

The hps did in fact yield more. You'll see the nitty gritty as you go through the pics. I took a really good look at lots of trichs and I can't say that the LED had any more amber than the HPS now. Almost all trichs are cloudy, with only a few amber. This SS is simply too stony, in a couchlock kind of way, if I let it get too amber. I sit on my ass enough.
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Sugar Shack chopped 55 days:

Just before the chop:

-------------

hps/led

hps/led

hps/led

hps/led
----------------


How about a couple of macros? You can see the trichs well enough to see there's only a couple amber in each shot. Some leaves from under both the led and the hps that I looked at had quite a few amber up to 10% on the trich covered fans.
hps

led
-----------------

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[hazy]

more pics after trimming:













hps/led

hps/led

hps/led

Now, I never bother weighing my bud while wet, but thought I'd grab the kitchen scale and toss them on. The one pics weird cause I had to manipulate the curves in PS to get the weight to show. I don't know how much that'll reduce too, but I think 5 oz wet may make 1oz dry? we'll see in a couple days. Usually only takes 2 days till they go to the jars, or in the case of the Shack, to the paper bag, hard to cure and get any taste type weed! 5.64 wet for the hps 4.52 wet for the led.
hps/led
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[buddah]

nice shotz hazy!!! LED looks frosty

also 10 g diffrent!!! And 150w less compare to the ndl!!
LED seems like to be kick ass!!

 

[Maj.Cottonmouth]

You are NOT overdoing it on pics, ICMag peeps love the weed porn.

It looks like based strictly on yield the HPS won but I think you have shown that LEDs are a viable option as you still pulled a respectable harvest from the LED.

Do you think you can increase your LED yields by customizing the environment to be biased for the LED? I was thinking maybe adding more lights because of the lower heat.

LED lights seem to be a great option for cab growers, anyway enough rambling, thank you for this awesome side by side.

 

[Che]

Rockin results Hazy! That SS looks deadly, and it's interesting that you've found the LED side matures more quickly.. Good to know!!!!



Fantastic thread my friend
-Che

 

[blazeoneup]

Yeah thanks for the show, I agree it's clear that the HPS has won the battle, However it's also clear that the LED did produce comparible results.

Figure the 205w led only draws around 190w so thats under half the wattage used for very simular results. 100 grams wet would be around 20 grams difference, Not much of a difference, when you factor in 20 more grams 210 more watts of power.

I am starting to think LEDGirl might have a winner with the LEDS, Plus knowing the fact that she is working on improving them as time goes on the future sure is bright for the LEDS.

 

[grow2bfree]

Hazy - Great shots. I am going to go out on a limb and guess at the dry weights. HPS: 1.13 - 1.41oz LED: .91 - 1.13oz depending on how dry they are after 2 days. (I normally dry mine over a longer period. Not to say that it is any better, just my personal preference.)

**The following is not intended to give a representation of the final grow. It is just meant as a way to compare 2 plants.**

Using the low side of my guess: (assuming my math is correct)
HPS: 1.13oz = 31.64 grams 31.64/400 = .08g/watt
LED: .91oz = 25.48 grams 25.48/205 = .12g/watt

Based on g/watt alone. IMHO, LED is winning so far. and if in fact the plants do ripen faster under LED, well, that is just another one in the plus column. (just wish they were cheaper, lol)

Once again, Hazy. OUTSTANDING job. Well done. props and more props.

Peace

 

[grumblez]

Yeah Hazy you did well here man. Nice job all around...

 

[Turtle Lord]

I'm very glad to see LEDs producing comparable results.

 

[hazy]

You are NOT overdoing it on pics, ICMag peeps love the weed porn.

It looks like based strictly on yield the HPS won but I think you have shown that LEDs are a viable option as you still pulled a respectable harvest from the LED.

Do you think you can increase your LED yields by customizing the environment to be biased for the LED? I was thinking maybe adding more lights because of the lower heat.

LED lights seem to be a great option for cab growers, anyway enough rambling, thank you for this awesome side by side.

I think you have it. I've given a lot of thought to these environmental issues and making adjustments for the led lights. I think based on the greenness of the leaves and the way it grows more compactly(not a bad thing in itself), may suggest that a nutrient tweak is in order. Not sure what though.
Another idea I've had is to surround it with 4 of those 2' long T5 lights,(with either 1 or 2 tubes) on each side, to supply the needed warmth and maybe there'd be something extra in the light spectrum that the floro could provide that the plant would like too. Maybe that could give a cab grower the needed heat.
I think it can stand on its own though. As long as your house temps aren't too cold. And hey, a heating mat is always an option to warm the root zone. I don't think one would need to use a room/house type heater.
A big plus could be not having to vent the light exhaust. Vent right out of a cab into the bedroom, no heat. Just recirculate the air through the filter.

Cost does seem high. However, when you go through LEDgirl's threads and see the cost of the actual led lights you start to see why they are high.
You could build one yourself for not much less than you could buy one of HydroGrowLED's. Some folks around here have done it.

 

[Zealious]

GREAT results.. Thats a huge LED win in my book. the future is indeed very bright..

I think minor tweaks and u can out yield the hps.

IMO I think 28w cfls are the way to go. 6500k and 2700k just dangling in the middle of the canopy. 4 28w cfls will raise ur temps by about 5 degrees i find.. I also find that 2700k cfls put out twice the amount of heat as the 6500k ones