Confined Space 850W LED Master Kush Grow

ssj4jonathan

Well-Known Member
WOOT! LEDs KICK HPS' ASS--EAZY!!! {LED->kiss-ass<-HPS}


ledbudguy: This is by far the best LED (ONLY!!) grow thread I've seen to date. Worthy investment going with the ISIS-1. Also, gratz on not wimping out (like so many others have done) and switching to HPS for the latter part of the flowering stage. Little less than 1g/watt is very impressive; I'd like to see a HPS grow do that! For you next grow I'd suggest the same set-up but using Superoots 2 gal/7.5L Air-pots instead of regular nursery pots. LEDs combo'ed with air-pots would be the all-time best grow EVER!!! They're only 6 bucks a piece plus shipping from perfectroots . com . Once again fantastic LED ONLY grow, anticipating your next grow.

P.S. Any chance you can get your friend's HID MasterKUSH buds and yours together for a comparison picture? Would love to see how your LED buds blew your friend's HPS buds out the water!!
 

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dunit

Active Member
I think the Blackstar is a cheap LED panel and won't perform up to the benchmark set by the ISIS in this grow. Props to LedBudGuy for providing me with the information to figure that out. Thanks to HudsonValley for pulling a Blackstar apart and taking pics to show it didn't have a real heat sink. LED's loose luminous efficiency as their core temp increases which is why the heat sink is important to get the most out of your lights. That being said I'm not hating on Blackstar. If you've only got $250 then buying an ISIS isn't an option and if you wanna grow you better grab a blackstar. I guarantee it will grow buds. I also think that if you wanna grow tall plants then the Blackstar definatley won't get the penetration because it has 120 degree lens angles (and I'm pretty sure 2W LED's but that's just speculation until HudsonValley can post some pics of his running with an ammeter clamped on), the ISIS will be better but I don't think will meet my specifications which is why I picked up the 357 Magnum. It's over twice the cost of a Blackstar but I have different requirements. When I have to pull my camping trailer I don't hook up to my Hyundai, but if I didn't buy the Hyundai first I wouldn't have made it to work to make the money to buy the truck and trailer so it all has value :-)

Grams per Watt is an important benchmark. Grams per Dollar spent is important too.....and it's time to put up or shut up :-) I'm gonna give it my best shot with my 357's and maybe someone wants to fire up a Blackstar grow? I've grown with Procyon in the past and they did okay grams per watt but their cost was ridiculous, probably up there with Stealth Grow. I hate repeating mistakes but I didn't document my Procyon grow on a forum so maybe I'll have to run another one cause talk is cheap. I'd love to pick up a Stealth Grow panel and run it against my 357 but I'd have to sell the trailer and maybe one of the kids to buy one :-)
 

ssj4jonathan

Well-Known Member
dunit said:
Thanks to HudsonValley for pulling a Blackstar apart and taking pics to show it didn't have a real heat sink.
Hey dunit,
Can you post a link to this thread where Hudsonvalley82 shows these pics and reviews the quality of Blackstar's internal components. I've searched all around RIU and every post made by Hudsonvalley82 but couldn't locate these pictures. Thanks a lot!

EDIT:: Ahh, found it!
 

dunit

Active Member
Hey dunit,
Can you post a link to this thread where Hudsonvalley82 shows these pics and reviews the quality of Blackstar's internal components. I've searched all around RIU and every post made by Hudsonvalley82 but couldn't locate these pictures. Thanks a lot!
No prob amigo....I can't figure out how the search engine works on here either. Seems to be pretty hit and miss.
The pics he posted are on my grow journal page 7. Just click the link in my signature.
 

Hudsonvalley82

Well-Known Member
Still haven't got that ammeter yet.

I think the Blackstar is a cheap LED panel and won't perform up to the benchmark set by the ISIS in this grow. Props to LedBudGuy for providing me with the information to figure that out. Thanks to HudsonValley for pulling a Blackstar apart and taking pics to show it didn't have a real heat sink. LED's loose luminous efficiency as their core temp increases which is why the heat sink is important to get the most out of your lights. That being said I'm not hating on Blackstar. If you've only got $250 then buying an ISIS isn't an option and if you wanna grow you better grab a blackstar. I guarantee it will grow buds. I also think that if you wanna grow tall plants then the Blackstar definatley won't get the penetration because it has 120 degree lens angles (and I'm pretty sure 2W LED's but that's just speculation until HudsonValley can post some pics of his running with an ammeter clamped on), the ISIS will be better but I don't think will meet my specifications which is why I picked up the 357 Magnum. It's over twice the cost of a Blackstar but I have different requirements. When I have to pull my camping trailer I don't hook up to my Hyundai, but if I didn't buy the Hyundai first I wouldn't have made it to work to make the money to buy the truck and trailer so it all has value :-)

Grams per Watt is an important benchmark. Grams per Dollar spent is important too.....and it's time to put up or shut up :-) I'm gonna give it my best shot with my 357's and maybe someone wants to fire up a Blackstar grow? I've grown with Procyon in the past and they did okay grams per watt but their cost was ridiculous, probably up there with Stealth Grow. I hate repeating mistakes but I didn't document my Procyon grow on a forum so maybe I'll have to run another one cause talk is cheap. I'd love to pick up a Stealth Grow panel and run it against my 357 but I'd have to sell the trailer and maybe one of the kids to buy one :-)
 

Viagro

Well-Known Member
Originally Posted by dunit
Thanks to HudsonValley for pulling a Blackstar apart and taking pics to show it didn't have a real heat sink.
I wonder what an ISIS looks like inside?

Someone should write them and inquire about their heat sink. Lay this speculation to rest. Blackstars might be getting a bad rap in an unfair comparison.
 

dunit

Active Member
I've got an ISIS that I use for my little guys and I can absolutely tell you it has a heat sink. I will post some pics later on when I have a minute to pull the cover off. As for giving Blackstar a bad rep.....that's not the intent......what I suggested is that they are a product that will work and is cheap. I think they are about the only LED light at that price point. I really wouldn't expect a product that is 30% cheaper to perform the same. Possibly the only question is bang for the buck and is it worth the extra money to make the step up. LedBudGuy has certainly set the bar pretty high with his ISIS grow at .9g per watt on a first run with LED's and bad clones but if it wasn't for competition we'd never improve so let's get growing and see who can kick his ass :-)

No disrespect LedBudGuy, just having fun.....appreciate the journal and the info and hope to send some back.
 

ledbudguy

New Member
I've got an ISIS that I use for my little guys and I can absolutely tell you it has a heat sink. I will post some pics later on when I have a minute to pull the cover off. As for giving Blackstar a bad rep.....that's not the intent......what I suggested is that they are a product that will work and is cheap. I think they are about the only LED light at that price point. I really wouldn't expect a product that is 30% cheaper to perform the same. Possibly the only question is bang for the buck and is it worth the extra money to make the step up. LedBudGuy has certainly set the bar pretty high with his ISIS grow at .9g per watt on a first run with LED's and bad clones but if it wasn't for competition we'd never improve so let's get growing and see who can kick his ass :-)

No disrespect LedBudGuy, just having fun.....appreciate the journal and the info and hope to send some back.


There is definitely a heat sink in my ISIS-1's as you can clearly see in this pic...

IMG_0908.jpg
 

dunit

Active Member
Lifespan is certainly one issue with heat. I'm not sure if the horticultural LED's have the same tolerance and the commercial lighting LED's I'm more familiar with but I know that for those one's we had to be careful where we were using them as when ambient room temp went up by 20F the lifespan dropped by about 30%. Still puts them pretty impressive compared to the lifespan of any other light but worth considering.

The other big issue is thermal efficiency. If we were using LED's in hot environments (I'm talking 120+F) we had to add 25% more LED to get the same light as their output drops off as they get overheated.

The final issue for our application is wavelength stability. If an LED in engineered to produce lights at 660nm at 75F but is operated at 95F then the spectrum will waiver from the original target due to their heat sensitivity.
 

NoDrama

Well-Known Member
Not when you factor in the expense of dealing with heat, electricity used, infrared signature concealment, equipment life, etc. There are good LED lights for <$300 that will grow a nice closet full of good bud.
850 watt LED uses the exact same amount of power as a 850 watt HPS ( if there were such a thing). You don't need to worry about infrared signature output unless you are running 10,000 watts + of HID, a couple thousand watters won't show much, besides cops in USA cannot use thermal imaging equipment without a warrant. Perhaps those folks in the UK might need to worry. Far as equipment life goes, the only thing you need to replace on a HID system is the bulbs. Power supplies in LED systems are as prone to breaking down as much as a Ballast is.
 

Hudsonvalley82

Well-Known Member
Oh and he forgot to tell you that LEDs are manufactured by satan himself, and jesus shines his light down from heaven using strictly HID lighting. On top of that, LEDs cause your genitals to shrivel up and fall off your body. That is if the mice they attract don't gnaw them off first...Come one man, they aren't so bad that you have to sand bag people every opportunity you get...

850 watt LED uses the exact same amount of power as a 850 watt HPS ( if there were such a thing). You don't need to worry about infrared signature output unless you are running 10,000 watts + of HID, a couple thousand watters won't show much, besides cops in USA cannot use thermal imaging equipment without a warrant. Perhaps those folks in the UK might need to worry. Far as equipment life goes, the only thing you need to replace on a HID system is the bulbs. Power supplies in LED systems are as prone to breaking down as much as a Ballast is.
 

dunit

Active Member
I thought they were made by Santa.......freakin dyslexia

If the only thing you need to worry about costs $200 per year minimum (2 bulb replacements a year).....I'd say that's a pretty sigificant expense. IR doesn't bother me so much as RF. 1000W ballasts are a huge RF transmitter and there's been no ruling on RF monitoring and the equipment to identify RF transmission is very cheap and easy to use and can be used by ground based operators so no need for a chopper. Here in the great white north they are already using RF scanners to identify "suspicious" properties and then they just use ways and means to gather enough other info to support a warrant. The other thing they use now that they don't need a warrant for up here is consumption timers. Once they have suspicion they use a load timer to figure out if your power usage has distinct 12 hour on/off heavy loads to indicate a flowering grow and they use that in their warrant app.
 

carl.burnette

Well-Known Member
Just a question...

When I grew a couple plants under t-8 & t-12 Flouro tubes the buds looked great, tasted great but the yield was the shits. After curring I bet I lost 90% of the weight. Still good buds, tastey & potent. But as they cured up they lost almost all of their weight. Went all airy on me.

How was your buds after curing? Do the LED's have the same issues with airy buds? I know they would be dense after chop & start of drying.

My HPS grow the nugs are hard as rocks even almost 2 months into curing in the bottles.

Please let us know how the buds are at the 2 month mark if you could.

Thanks
 

stoneyluv

Well-Known Member
A friend of mine grows under 1000w HPS and grows some killer bud. huge and potent! him and I grow the same dna plants and I grow under LED. He is always complimenting my buds and tells me they are fuller and firmer than his grow. my comeback is always yea, but you get 4 times as much.... then he says yea, but my electric bill is 4 times as much. the fact is, yes, LED lights grow very good quality buds.
 
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