p4id
Well-Known Member
http://www.pacificlightconcepts.com too and robins site, i forgot its name.
CXB3590 1500W
- Thread starter SupraSPL
- Start date
Danielson999
Well-Known Member
ttystikk
Well-Known Member
Thank you gentlemen, I do not want to leave anyone out!
Danielson999
Well-Known Member
Robin has some sweet looking passive heatsinks in stock. I'm wishing I didn't buy from heatsinkusa now but oh well. Hopefully they will be around for the next project.
sgarcata
Member
Supra, was this for a 5 x 5 space?
sgarcata
Member
How do you separate the worms from the castings? and do you do anything to the castings to be sure not to get worms or worm eggs into your grow soil?
I have a lot of happy worms (they really love avocado shells, BTW) but have a devil of a time harvesting the castings.
MeGaKiLlErMaN
Well-Known Member
I'm really on the fence right now between a cxb3950 3500k or 4000k.. Leaning a bit to the 80CRI 4000k for efficiency. That said running that at 1.05A would be quite nice.
Also did you ever hear about MechaTronix? I was looking for passive heatsinks and came across it.
Here are some photos of a 57W one
Oh and only $17.79 each
Also did you ever hear about MechaTronix? I was looking for passive heatsinks and came across it.
Here are some photos of a 57W one
Oh and only $17.79 each
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dom-one dela nooch
Active Member
hey buddy ,,,,,thanks for the info ,,,,,,,,,i have a 6.8 inch x 39.3 inch 20 fin heatsink and i am putting on 10xcxb3070s 3.5k bb bin .on a hlg240 700b driver ,,,,,,,my math is not great and think i got enough heatsink for passive but not sure could you tell me if i could run this heatsink passive and what the ppfd numbers would be in a 2x5 tent .i will send you a link of my uk heatsink profile and i be most greatful for any help http://www.bal-group.com/heatsink_detail/52
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yoda954
Well-Known Member
Hi friends
I need your help in choosing LED drivers for my cxb3590
I currently have 2 panel (2 x 4 cxb3590 36v and 2 x drivers mean well HLG-185H-1400B)
This was in a 5 x 3 grow tent
but I changed my 5 x 3 grow tent to 4 X 2 grow tent
so the panels will be too powerful for this one
What would be best?
1) 240 Watt with (1 X HLG-240H-36) parallel connection
2) 300 Watt with (2 X HLG120H-C1050) series connection
2) 300 Watt with (2 X HLG150H-36) parallel connection
4) 320 Watt with (1 X HLG-320H-36) parallel connection
5) 320 Watt with (1 X HLG-320H1050) series connection
hoping for the quick help
thank you very much
I need your help in choosing LED drivers for my cxb3590
I currently have 2 panel (2 x 4 cxb3590 36v and 2 x drivers mean well HLG-185H-1400B)
This was in a 5 x 3 grow tent
but I changed my 5 x 3 grow tent to 4 X 2 grow tent
so the panels will be too powerful for this one
What would be best?
1) 240 Watt with (1 X HLG-240H-36) parallel connection
2) 300 Watt with (2 X HLG120H-C1050) series connection
2) 300 Watt with (2 X HLG150H-36) parallel connection
4) 320 Watt with (1 X HLG-320H-36) parallel connection
5) 320 Watt with (1 X HLG-320H1050) series connection
hoping for the quick help
thank you very much
yoda954
Well-Known Member
kmog33
Well-Known Member
Yes I'm sure. I would use at least 400 watts in a 2x4.
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yoda954
Well-Known Member
general purpose LED is consumed less than HPS ^^
if I let 400W cxb
it is as if I had 400wtt HPS :/
This brings to my interest to change the drivers to consume less ^^
PerroVerde
Well-Known Member
400 watts of CXB 3950 at 56% efficiency in a 8 square foot area would give you a PPFD of around 1250...
I would lean a bit more in the direction of 2 hlg 120 1050 at 61% efficiency. 8 COBs for a PPFD of around 1020 with 100 less watts...
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kmog33
Well-Known Member
Doesn't negate the fact that he will pull more with his current setup than the one you described, plus it wouldn't cost an additional couple hundred dollars. Plus it's not like the light would be wasted in that space. So the ~$5 a month difference in electricity that the 100 watts you are taking about, how long would it take to pay off the extra parts he's need to add? Even if it's just the drivers plus shipping he's looking at around $100 on top of what he's already spent? 20+ months to pay off costs to downgrade the light in your space for a slight efficiency boost on paper. The situation you described would be less light at higher efficiency, meaning at a 20-30% decrease in yield for more money and an electric bill that's around $5 cheaper.400 watts of CXB 3950 at 56% efficiency in a 8 square foot area would give you a PPDF of around 1250...
I would lean a bit more in the direction of 2 hlg 120 1050 at 61% efficiency. 8 COBs for a PPDF of around 1020 with 100 less watts...
That doesn't make sense to me.
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PerroVerde
Well-Known Member
I think 8 cobs and two drivers will cost you about the same. I have 400 watts of cobs in 10.7 square feet and I have to dim and raise my light at times. I have a PPFD of 940 and it's a bit much, equal or better then the 600 hps I had in this area before with far less heat. No offense intended, just another option...
kmog33
Well-Known Member
No, leds are more efficient in a better spectrum. Watts are watts. A 400 watt hps would not adequately cover a 2x4 IMO. A 600 is better in that space. 2x4 and 3x3 are very close to the same surface area but in a square there are better reflective properties, so the fact that you're in a rectangle means the light is not distributed as evenly or efficiently as in a square. 400 watt hps for a 2x2-2x3, 600 watt hps for 2x4-3x3, 1000 watts for 4x4-5x5. So you can cut down from those numbers with high efficiency cobs, but for flowering I would still aim for ~50watts per square foot, which means 400 watts min in a 2x4.
With LEDs you can use less to pull the same amount in theory, but IMO it's better to use the benefit of less heat and added yield with the same amount of power.
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kmog33
Well-Known Member
He already has panels built...so any cost is additional.I think 8 cobs and two drivers will cost you about the same. I have 400 watts of cobs in 10.7 square feet and I have to dim and raise my light at times. I have a PPFD of 940 and it's a bit much, equal or better then the 600 hps I had in this area before with far less hear. No offense intended, just another option...
Are you pulling 2lbs with your 400 watts of cobs in that space? Because if you're not, you're not doing Better than a 600 can. But you're doing better in your setup because you're having an easier time keeping the rest of the system/environment balanced.
Not saying this is your situation, but a lot of the guys that are getting into cobs are so fixed on paper efficiency they don't realize that it gets really stupid at somepoint.
In your space of you used 500 watts instead of 400, and you pulled an additional 150grams+ from the added $5 a month. Now say you harvest 4 times a year. That's 600 grams a year you'd have that you don't currently.
So for $60 in electricity for the year, you have several thousand dollars in additional product. Efficiency is cool and all. But when your taking about 100 watts, you're not really taking about saving electricity/money, because you're not.
Huge setups with hundreds of thousands of watts.... Absolutely, when you hit 1000 watts your adding $30-50 a month to your electricity depending on if you're in veg or flower. And IMO if you're worried about $5 a month on your electric bill, you probably shouldn't be growing pot, it's fairly energy demanding.
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PerroVerde
Well-Known Member
No brother, my bad. I didn't comprehend even though I read the op. It happens, I lock on to a part of something and become obtuse to key points... lol