**ULTIMATE LED TEST** *GLH Spectra 290* VS *Blackstar 500* VS *Hydro Grow LED 336X*

shmowzow

Member
Damn sure hope not like I said my last grow was alright yielded roughly 2 per plant at 3 weeks veg. was hoping to do better with the supersoil and switching from 3 gallon pots to raised beds. from what everyone says I definitely should It will be my first time doing a journal but I will keep everyone posted with pics etc... already loving the look of my dutch passion blueberry, the delicious seeds cotton candy, and my g13 labs Hypnotic. Have a few other freebies and what not. will post pics soon.
 

topogigo

Member
just one question now im not positive but shouldnt u have gotten the xpro 3 watt and dropped down to the 189 model for a more accurate comparison i mean if thats the case u totally shorthanded the hydrogrow led with .07 watts compared to the other 2 blackstar and whatever the other one was spectra im not tryin to stir up anytype of negative vibes but under the guidlines of tech.specs the 1 watt is dropped to .07 for longer life and the 3 watters r dropped to what 2.5 or something right ,i have done all kinds of research and i came across this post loved it by the way but feel that its not quite a fair fight like 3 people go in 2 have machine guns and the third has a saturday night special gun of course the saturday special is gonna be below the other 2 just my thought on this subject. the x to x pro is a big diff in penatrationput me in my place if i am outta line.
 

WeJuana

Active Member
I do definitely acknowledge that there is a difference in wattage, however I do not at all feel that the other lights were necessary. If you are merely looking to figure the grams per watts, one can take the average yield per plant and do the math needed with each light's wattage to give the gram/watt figure if that is what you need to know. I am here to document my grows, and all though I did try to match wattage similarly, I must admit that was not top priority overall for the testing. My main goal when I started this thread was just to share my grow and display some different types of LED's and show they can in fact grow awesome meds.

just one question now im not positive but shouldnt u have gotten the xpro 3 watt and dropped down to the 189 model for a more accurate comparison i mean if thats the case u totally shorthanded the hydrogrow led with .07 watts compared to the other 2 blackstar and whatever the other one was spectra im not tryin to stir up anytype of negative vibes but under the guidlines of tech.specs the 1 watt is dropped to .07 for longer life and the 3 watters r dropped to what 2.5 or something right ,i have done all kinds of research and i came across this post loved it by the way but feel that its not quite a fair fight like 3 people go in 2 have machine guns and the third has a saturday night special gun of course the saturday special is gonna be below the other 2 just my thought on this subject. the x to x pro is a big diff in penatrationput me in my place if i am outta line.
 

WeJuana

Active Member
This thread has been an awesome avenue for me to document my grows! Everybody who stopped by the thread, I thank you and greatly appreciate it! Thanks to all who added input for your participation, and thank you to all the lurkers too.. your not forgotten! It is now that time to call this one done; It is conclusive that LED's can in fact grow high quality meds without sacrificing your yield.

On to the next grow I go! If you have any interest in following please do so > Wejuana Comeback! <LED vs LED> Blackstar Chrome 720 VS Penetrator 336x-Pro

One Love!
-Wejuana
 

Bluezdude

Well-Known Member
Very nice work mate, congrats. I'm about to start my own led grow now and your thread was really helpfull. Ta very much, mucho rep to you :)
 
@WeJauna

Is there a way the actual grow information of this thread can be condensed? It seems like an amazing resource ~ especially considering I think LEDs are the growing of the future(until we can safely and easily put a star in a bottle) and I've decided to only ever use them in my growing ~ and I want to make sure I start out right, but it's about gods' ballsout irritating having to shuffle through all the blah blah blahs to get the solid information.

FYI, I went with a Blackstar 240 Vegetative for now. It was purely a price function. I figure if it the brand was a hard hitter enough to be in a consideration with lights two to three times its price it was good enough for me to drop three hundred on it. Plus I can incubate the babies under the veg light until I can save up for the corresponding flowering light. It's good logic, I reckon.

And hey, what's up with the new Blackstar Chromes? They look suspiciously similar to the Penetrator Extreme series, yeah? This is probably being talked about elsewhere. I should maybe look.
 

Senseimilla

Well-Known Member
Be sure and follow up on here how you're doing with your blackstars -- i have a lot of experience with'em in case you run into any grow issues you think may be related -- not the chromes though
 

shmowzow

Member
I have a couple pics to share of my led grow. I put 1 600 in the mix just to compare. It is true that i have a bunch of different strains going in the interest of narrowing it down to the 4 I like, but i put 3 super silver haze under the 600 and 3 under the 336xpro from hydrogrow and the 336xpro looks to be outperforming the 600 by a wide margin so far. I am in my 2nd week of 12/12 after 2 weeks of 18/6 using a soma bed and sub cools supersoil.


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hippy132

Well-Known Member
Buy an AC and pay for electricity it will be cheaper and one 600 is so much better than any damn LED, IMHO...
 

newworldicon

Well-Known Member
Thanks to WeJuana, and all the other contributers to this thread, a great read and very helpful and informative.
I do have a couple of questions, maybe you guys can help me.

Of the results just published above, the overall yield appears to be +/- 60gms/plant, multiplied by 5 to each tent? equals around 300gms/tent or per light?
So production in this experiment was 1gm per led watt?
The advertising I have seen claims that one of these led 300w units is suposed to be equivelant to, or better than a 600w MH/HPS?
Would you not therefore be expecting production to be up in the region of 600gms for this light? (at 1gm/watt)?

I have also heard repeated mention of the LED units running cooler, producing less heat inside the grow room, but no one seems to actualy specify by how much they run cooler?
If I were to swop a 600w HPS for a 300w LED, How much heat (on a comparative basis) would it produce, Half? Quarter? Eighth?
I already position the ballast outside the grow area, so please ignore the considerable heat that comes from that, purely the HPS lamp/holder assembly against the LED unit? Any of you Tech guys got any Ideas?

Thanks
Allow me to ask this question, how many people genuinely get 1g/watt or 600g of dry product under a 600W HID/HPS? I think we all know the answer to that question...most don't. However having gone from HPS to LED I can honestly say that getting 1g/watt is much easier done than with HID.

Regarding your temp question, I believe through experimentation with my LED that temps of 84/85 are going to result in better yields as opposed to 78. With HID the surrounding air tempreture may be 78 but the temp at the leaves are going to be 84/85. Whilst I understand the science/biology behind it I may not be that great at explaining it to you, I am sure someone else may chip in on that. Either way my experience tells me this works, I harvest every 2 weeks so see the entire process many times over and over.
 

WeJuana

Active Member
Hey all! I have been continuing to test LEDs, and I will be resuming my updates on this thread! This is from the most recent light tested, the Blackstar Chrome 720w LED.

[video=youtube;1E9ZwleA2d8]https://www.youtube.com/watch?v=1E9ZwleA2d8[/video]

The dry weight results from the Blackstar 720w Chrome tent are in!

If you have been following the grow, you know there were 6 plants in the tent, but the Trinity Kush plant was just not happy with the nute regiment and got overgrown. It turned out so snickely it has been discontinued from the garden and the plant was turned to hash. The following results are based off of 5 plants.

With that said, the LED results are quite close to the 69.3 gram per plant average I just yielded from a 1000w magnetic ballast tent.

Watch the video for the complete breakdown.

Results:
Total Yield: 324.8 grams
AVG Grams per plant: 64.96

Blackstar Chrome 720w -http://www.gothamhydroponics.com/feat...
 
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