DIY CXB2530 3000K 80cri U2 bin (Vero Killers!)

SupraSPL

SupraSPL

Well-Known Member
I agree lumens can be very misleading, I prefer to think in terms of PAR W/ft². At the end of the day it is about quality and yield. You can pack as much intensity in the canopy as you like with COB, much higher than 1000HPS can reach, but the law of diminishing returns kicks in in several ways if you go too high. I run at what I consider a good compromise for my setup, 15 PAR W/ft². That is about the same as running a 1000W HPS in a 4X4. Some of the indicas can get large dense buds to the point that I have to beware of white mold in the center of the biggest colas, without overfert, even during the dry season. I don't usually run dense indicas anyway, but it is worth mentioning.
 
ttystikk

ttystikk

Well-Known Member
I'm looking for about 50% more PAR than your value, and I'm hoping that the CRI will also help with trich production... not that I'm having any trouble in that department now, even with HPS lighting alone.

I am in the peculiar position of desiring a bit more heat... my plants are so big and vigorous that even 4kW of HPS isn't keeping the room warm enough, due to a truly incredible rate of transpiration.
 
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churchhaze

Well-Known Member
And yes, I bumped my own thread... It's about time too... People deserve to see substance, not 15 pages of bullshit. Not trying to play myself up, but seriously...

"surely you guys are using a drill press to drill holes".

blah blah blah.... .. we just drill the holes without WHINING for 15 pages, making americans all look retarded in the process... wow!

I made the holes... with my fucking teeth..... baby...
 
bicit

bicit

Well-Known Member
Church, how effecient do you think a CXB3590, 72v, 5000k emitter would be driven at 350 ma? The data sheet cuts off at 700ma.
 
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churchhaze

Well-Known Member
bicit said:
Church, how effecient do you think a CXB3590, 72v, 5000k emitter would be driven at 350 ma? The data sheet cuts off at 700ma.
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Ludicrously efficient I'm sure. I'm not sure what the LER is on the 5000k 70cri emitters, or whether 80 cri might be a better option now for cxb. Someone like Alesh would probably be better to ask questions like that. I'd be willing to guess top bin is somewhere around 60% efficiency or more driven at 350mA.

 
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ttystikk

ttystikk

Well-Known Member
churchhaze said:
Ludicrously efficient I'm sure. I'm not sure what the LER is on the 5000k 70cri emitters, or whether 80 cri might be a better option now for cxb. Someone like Alesh would probably be better to ask questions like that. I'd be willing to guess top bin is somewhere around 60% efficiency or more driven at 350mA.

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If I wanted to build a 60% efficient lighting system, what would the price premium be over 40-45%?
 
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churchhaze

Well-Known Member
ttystikk said:
If I wanted to build a 60% efficient lighting system, what would the price premium be over 40-45%?
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Ask @REALSTYLES... he's running so many giant cobs at such low currents. I'm not exactly sure what the efficiency is. I'm guessing it would cost 2-3x as much in cobs.

SupraSPL has spreadsheets for each cob driven at different currents, for each color temperature. I'm sure there's one floating around for the top bin cxb3590, which would probably be the best way to try to get that efficiency.

The 5000k ones are slightly more efficient, but the extra blue isn't very helpful for flowering. Would be great for a veg lamp.
 
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churchhaze

Well-Known Member
a 60% efficient lamp with a LER of 325lm/W (the 3000k 80cri phosphor), would have a luminous efficacy of 195lm/W... not that lumens mean much, but still.. That's what 60% would mean for 3000k 80cri.

195/325 = 0.60
 
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bicit

bicit

Well-Known Member
ttystikk said:
If I wanted to build a 60% efficient lighting system, what would the price premium be over 40-45%?
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Really just kinda depends on what components you choose. Driving the Vero 29, ver 2, 5000k, 70cri @ 350ma would be 58% efficient, $4.04/parw. The same cob @2100ma would be 44% efficient, $0.81/parw.

Of course this is in a vacuum and ignores things like the price of heatsinks and drivers which can widen or narrow the gap depending on final assembly. But figure 2-3x the cost for a 60% efficient lamp.
 
REALSTYLES

REALSTYLES

Well-Known Member
churchhaze said:
Ask @REALSTYLES... he's running so many giant cobs at such low currents. I'm not exactly sure what the efficiency is. I'm guessing it would cost 2-3x as much in cobs.

SupraSPL has spreadsheets for each cob driven at different currents, for each color temperature. I'm sure there's one floating around for the top bin cxb3590, which would probably be the best way to try to get that efficiency.

The 5000k ones are slightly more efficient, but the extra blue isn't very helpful for flowering.
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Shit Church I'm still trying to figure it out lol. Super intense lighting but I'm glad I can dim it down from 700ma to 350ma and that's why I'm buying more to run them soft like a babies thigh. I am going nuts waiting for the CXB's my budget changed I'm gonna spend more. I had $7888 left but spent $300 on heat sinks, $964 on 24 CXA 3590's and $1034 on 16 Mean Well drivers.
 
REALSTYLES

REALSTYLES

Well-Known Member
You guys are gods when it comes to the led's. I'm the guy who does recirculating drip systems, DWC and under current systems. You guys have been so much help to me I need to give back. That's why I've been finding the deals and if it's dealing with rock wool or DWC I can help you like you guys helped me.
 
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churchhaze

Well-Known Member
REALSTYLES said:
You guys are gods when it comes to the led's. I'm the guy who does recirculating drip systems, DWC and under current systems. You guys have been so much help to me I need to give back. That's why I've been finding the deals and if it's dealing with rock wool or DWC I can help you like you guys helped me.
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Naw, most of these LED guys are organic troll fuckers... lol.

Maybe i'll need help if i upgrade DWC to recirculating... hmm..
 
REALSTYLES

REALSTYLES

Well-Known Member
churchhaze said:
Naw, most of these LED guys are organic troll fuckers... lol.
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Dirt is cool outside, but for me rock wool or DWC and less plants bigger yields. I forgot I'm a super crop master I worked for a dispensary for 2 years before I quit. The owner was a asshole and cheap lol. He didn't want to fix shit and one of my best grows 20+ lbs got stolen. I was in the clear because of the accident I had 3-4-2014 and when I got out of the hospital I went right back to work and 3 months later I told him fuck you, fuck off and you're a bitch, all because he didn't fix the A/C and the flower room hit 110F every other day for 2 weeks.
 
ttystikk

ttystikk

Well-Known Member
REALSTYLES said:
You guys are gods when it comes to the led's. I'm the guy who does recirculating drip systems, DWC and under current systems. You guys have been so much help to me I need to give back. That's why I've been finding the deals and if it's dealing with rock wool or DWC I can help you like you guys helped me.
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You sound a lot like me, brother.

I give thanks that we can collaborate on this forum like we do, because it accelerates the pace of advances so much.

WE are the face of the bleeding edge in advanced indoor cultivation applied science, a discipline with obvious and important implications for feeding a crowded planet, reducing our footprints (carbon, space, time and other resources), growing food and plant based medicine without environmental pollutants or contaminants, and much more.

This is why I'm here, that's what keeps me interested. Weed may yet save the planet and we just might be the ones to do it.
 
ttystikk

ttystikk

Well-Known Member
bicit said:
I find hydro to be a bit of a hassle. Soil is a little more entertaining. Growing the plant is secondary to properly tending the micro herd. I think hydro is kinda simple and rudimentary in comparison. :P
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If hydro was the only thing I was playing with, I'd be inclined to agree.

Since this discussion is happening in a thread about highly advanced light sources, it's safe to say that my interests run a bit further than salty water.

Frankly, I DON'T want the uncontrolled variables of a microherd involved in my research, as I have entirely enough variables to deal with already.

I'm not dissing your approach, I'm just explaining why I chose the route I did.
 
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