Update on MJ12Led light

OP :

How many plants are you running under that ?
It looks like you lollipopped them and topped ?
Strains ?

What's the solution if a " cob " goes south ? From company

Any more recent " flowering " pics .... Seen that one already .

jdVICK said:

This is result of my new led 450W Viparspectra really happy with my babies hope it's ok to post I notice a little hostility in the air, so I'll just throw out there I have 2 grow boxes one hps one led here's a couple pics from both I'm a fan of the art no matter procedure I just respect the grow peace to all and toView attachment 4151945 View attachment 4151947 all a good night=)

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A few people might hate on your Vipar, but they have a little niche that they fill. Cheap blurple lights are about on par for HIDs watt for watt. I'd still take 600 watts of HID over 600 watts of blurps, but that's just me.

The, um, hostility in the air is due to the fact that two separate and brand new accounts started within days of each other came on the board and started pushing these overpriced garbage bins like they were the hottest shit ever. So, they either work for the company, or like they claim, they were both given the light for free for testing purposes. But who gives away free lights to a pair of rookie growers? I wouldn't. Oh, but I forgot - they're professional breeders. You can't script this shit.

1) They claim they are US made - they aren't

2) They're trying to claim that they match a 1000k hid - with no proof or actual measurements, but hey, they look bright af when you stare right into them.

3) They've been asked numerous times for specifics on the actual cobs, which were met with the sounds of crickets chirping.

4) If you take a look at their actual setups and plants, it becomes clear that these guys are amateurs at best.


And btw - please stop referring to your Vipar as a "450W Vipar" It's not. I love Vipars, but the 450 is a 200 watt light

" They're trying to claim that they match a 1000k hid - with no proof or actual measurements, but hey, they look bright af when you stare right into them. "

As @Johnny Lawrence stated ... When some mystery light comes around lots of growers will yell BS UNTIL we see it prove otherwise. Buyers WANT AND NEED to know specifics about any light .... Actual power , components, drivers , par ( if available) , recommended grow space , running temps , fit and finish , etc. AND MOST IMPORTANTLY- customer service ...... I live fucking close to that " location " - reached out but no reply . That is a fuck up on their part .... Companies that stand behind their products speak volumes, but if YOUR QUESTIONS AND COMMENTS go unanswered .... Then fuck them.

There " good cobs " and " bad cobs " , it's the TRENDY term used by many bullshit light makers. EBAY and Alibaba are flooded with them . Each " cob " running 6watts each sounds like they are purposely under driving them ( for life of piece ) and most likely the substandard components. Lots of CHINESE builds do this. MARS , VIPAR , KING , MEIHIZI , GALAXY and others do it. Just pop a BLURPLE panel open and look . It will sport a thin , low finned heatsink with sloppy TIM , small plastic drivers , epistar LEDs ( sometimes bulk LEDs that did not pass with better specs ) bulk seconds .

The REAL REASON it " may look brighter " is from the dome lenses .

The funny part is ... One can build a CLONE of this light running SOL STRIPS / Samsung strips INSTEAD of those cobs with less bars built and destroy ANYTHING that would ever do based on the cryptic secret bullshit we have to PULL INFO from. It's like asking for blood , and that is fucking sad .

Or

6 ) Growmaus PCB pucks ( 100w each ) hung as two rails of 3 or frame of six would ALSO bitch slap that .

The more you know ...

growingforfun said:

Ha! Right? An for 1500 we could buy 5x 1000watt hps fixtures and hortilux super hps bulbs AND the electric to run them the first cycle and part of the next one...

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Led growers spread a lot of bs rumours that hps burns your plants through raising the small internal air volume of a tent that has a big bore inline exchanging air every few seconds with ir and conductive radiation heat....


Anyone who takes thectime to apply the laws of thermodynamics will tell you thats absolute rubbish...

And then a whole load of led growers bitched that the interior of their houses was 90f and over and that they couldnt run hps but apparently 1000watts of rip off leds was fine, ask em if their running hot weather sats or cooler indicas, this normally drops their ego a touch...

So the hostility comes when you deal with idiots otherwise we all got other way more important life issues like which strain to choose next?

Kingrow1 said:

Led growers spread a lot of bs rumours that hps burns your plants through raising the small internal air volume of a tent that has a big bore inline exchanging air every few seconds with ir and conductive radiation heat....


Anyone who takes thectime to apply the laws of thermodynamics will tell you thats absolute rubbish...

And then a whole load of led growers bitched that the interior of their houses was 90f and over and that they couldnt run hps but apparently 1000watts of rip off leds was fine, ask em if their running hot weather sats or cooler indicas, this normally drops their ego a touch...

So the hostility comes when you deal with idiots otherwise we all got other way more important life issues like which strain to choose next?

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My lights only raise the temp of my house when i want them to, in the winter...

The only thing i disagree with that you said is in relation to "hot weather sativas or cold weather indicas" in my experiance they both want 78-82f but thats minor.

Ive ran up to 7200 hps watts in flower in a sealed room, and was able to cool it just fine. Even in the summer.

Meh

Kingrow1 said:

# Your plants look spindly stretched and deprived of light to a point.

# This company has no credentials and the commercial and horticultural contracts they have satisfied are not worth anything and easy to get a shop and warehouse fit in a big state.

# Those that have not jumped on the led bandwagon have the benefit of knowing when a light, company and website looks legit or just another snakeoil pretending like it has a research unit that the rest of the lit world actually gives a shit about.

# I use to think attacking leds was not nice, then i read what they wrote and it was open season on the fools behind it, really they were the noobs who were in the dark not i who had followed light science since i got my first t5.... go figure!

# Are you the company owner or rep by chance?

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Look nice but let's see the weight and bud quality.

I've been trolling this clown for weeks now... getting free lights to promo the light. I wouldnt eve3n put it up for free. you guys have the worst excuse for an led grow light. @Kingrow1 this isnt led growing and wont help you convince people to burn their plants to a crisp either.

@Kingrow1 hows running your hps 6 inches from your tops? ? hmm?

Purpsmagurps said:

@Kingrow1 hows running your hps 6 inches from your tops? ? hmm?

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I dont understand this "question" you wont want any reasonable light so close, your only hurting your light footprint. If your light must be that close to work, than thats a issue. However ive had plants overgrow my space and end up touching the glass plenty of times and its not a issue if you know how to use your equipment... a 1kw light wants a 8 inch fan, and that 8 inch fan will pull enough air to cool most areas. With around 4000 watts plus youll start to want 2 8 inch fans. Ive done 8 lights all linked together one 8 inch fan by the intake end of the ducting and one right by the outtake and everything works great. Ive known people who do 20kw grows all summer with no ac an it comes out great they just move the air properly.

. Ive known people who do 20kw grows all summer with no ac an it comes out great they just move the air properly.


bull. fucking. shit.

if thats true then it must be summer on the top of a snowy mountain because that is complete fucking horseshit.

doing google searches like your buddy @Kingrow1 ?
do I have to add you to my sig too? try me.

how many humidifiers is he running then if he is moving enough air to cool 20kw of lighted air. you must not know about vpd.

Purpsmagurps said:

. Ive known people who do 20kw grows all summer with no ac an it comes out great they just move the air properly.


bull. fucking. shit.

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Purpsmagurps said:

how many humidifiers is he running then if he is moving enough air to cool 20kw of lighted air. you must not know about vpd.

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First off calm down i was eating.

Its really not that hard if you know what your doing. Pretty sure it was 4 rows of 5 lights and 2 12 inch fans on "Y" duct splitters. Under each light was 1 plant in a scrog, in 20 gallon pots. Every day it needed water, water would be added via pump until it ran off profusly, was then sucked up via shop vac, and it was watered again with botanicare pure blend pro. All standing water was removed from all trays before the end of the day. I never saw any dehums running EXCEPT if needed during drying. Generally only fans were even used then.

So ya. You can claim it not possible, or whatever you want really. Fact is though when you move enough air its pulling outside air that has moisture already in it. Juat know how to use your tools and the tools become way more useful.

LOL the botanicare has anything to do with what we are saying. I'll wait for a link of that grow and the results and stop talking to nonsense sayers.

Purpsmagurps said:

LOL the botanicare has anything to do with what we are saying. I'll wait for a link of that grow and the results and stop talking to nonsense sayers.

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You got all butthurt i didnt say anything about dehums so i gave you all the detail i remembered asshole. This wasnt a online grow. This was a guy i knew. Jesus christ man. I got zero reason to give a fuck if you cant understand basics of growing, enjoy your leds im sure they work fantastic for you and im not trying to talk anyone out of em. But at the same time if people who dont know how to use a HPS start spouting bs ill try to help inform them unless they show they really dont want the info.

growingforfun said:

You got all butthurt i didnt say anything about dehums so i gave you all the detail i remembered asshole. This wasnt a online grow. This was a guy i knew. Jesus christ man. I got zero reason to give a fuck if you cant understand basics of growing, enjoy your leds im sure they work fantastic for you and im not trying to talk anyone out of em. But at the same time if people who dont know how to use a HPS start spouting bs ill try to help inform them unless they show they really dont want the info.

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Dont buy into it but you see the problem between hps and led, i have been here a while so easier for me to question them and take the flak.

Ive questioned thermometer placement and run through the science of taking acurate readings of air temperature because mainly ir and light give inacurate readings. Done a whole lot of basic light and heat science type threads where weve identified that its pretty hard to raise air temps of the tent much above your house temps with good exchange as the air is only briefly in the tent for a few seconds.

Weve looked at ir heat on leaves and seen they lap it up, discussed why it feels hot under the hps but cooler over it in relation to true air temps and that that has ir radiating through it.

Still the led manufacturers hype their sales and it filters onto here where its pretty easy to pick apart by growers who run hos even in mid summer.

Even discussed that if your house temps are in the upper nineties you need to cool your house and stop roasting your wife kids and dog not bitch on about leds in a climate controlled twentieth century.

Still the same old answers from those that probably struggled with hps and just screamed heat stress before spending a $1000 every year on the next gen of leds and put those with lesser units down like noobs.

No ones even saying they dont grow good weed but just their claims are a little flawed and far too high, same thing every year, by now 100watts should out yeild a 1000w hps by their own advancements

Purpsmagurps said:

how many humidifiers is he running then if he is moving enough air to cool 20kw of lighted air. you must not know about vpd.

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Were just growers that dont struggle with hps and find a lot of what your saying not true in our grow rooms.

On Vapour pressure deficiet, most of what you read online is false and the actual equation is one bitch to get all readings let alone complete. Vpd is secondary to other factors and again if these considerations not applied then you cannot ever understand its complexity. Its easier to say a plant still transpires at 105% humidity and let you work backwards till you can hold that conversation on another thread not here.

This was never going to be an easy conversation between me and led science, i bring much more feasable answers which slander yours and dont portray hps as such a red hot flaming beast.

So yer i applied ir heat and light to photosynthesis and small tent growing in response to the obvious and soooo wot?

Kingrow1 said:

# Your plants look spindly stretched and deprived of light to a point.

# This company has no credentials and the commercial and horticultural contracts they have satisfied are not worth anything and easy to get a shop and warehouse fit in a big state.

# Those that have not jumped on the led bandwagon have the benefit of knowing when a light, company and website looks legit or just another snakeoil pretending like it has a research unit that the rest of the lit world actually gives a shit about.

# I use to think attacking leds was not nice, then i read what they wrote and it was open season on the fools behind it, really they were the noobs who were in the dark not i who had followed light science since i got my first t5.... go figure!

# Are you the company owner or rep by chance?

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There is no doubt that these lights grow bud ,and the plants look really pretty under these colours .but I will stick to growing large amounts under the HPS cool hoods,if I can find a light that will produce a lb per plant per light ,then I will move over to it,But in the mean time I will continue using my LED light to produce ,what I call Flavor grows,in the tent.The LED still does 1/4 lb of very nice dense bud ,and for the cost of running one ,it's daft not to use one.The Running cost is very low,no messing around with temps ext,I think my next grow with the LED lights is going to be with both I tested together,and see the outcome.Think it's Gonna be a Humboldt grow ,I was thinking Em Dog,One plant scrog with both Lights,The tent and led has let me do strains, that I would not normally do.And I have Enjoyed it,but now it's back to doing just the two in the main room ,perhaps the last led grow .And back to doing the strains that I need for meds.

Is the light causing the problems in your grow...They don't look that great and i think the light is to close
Good luck with future grows