alesh
Well-Known Member
Sure it does. You can't make a 60% efficient light more efficient by adding <60% reds.60% doesn't say anything, cause your not applying that 60% to the whole package with the right ratio of 660 put into perspective
Sure it does. You can't make a 60% efficient light more efficient by adding <60% reds.60% doesn't say anything, cause your not applying that 60% to the whole package with the right ratio of 660 put into perspective
BUT YOUR 60% light .... does it emit as much deep red or not compared to adding some 660nm deep red monos ?Sure it does. You can't make a 60% efficient light more efficient by adding <60% reds.
Have you made a light before? Ive made 14 so far and have the parts to build 4 more but I don't need them just yet(no room). It wouldn't take long for him to put them together plus if he lakes them himself he'll know how to fix it if something goes out.I'll apologize for the blowing smoke comment. however, what about my questions was wrong? Its ok to ask about a design but not about the thought process in taking this approach for a business? I just wanted the why and how of DIY'ing business equipment. Wouldn't those answers be useful to others thinking along these lines? Does this approach make sense for a business?
Maybe I'm just not good at asking the questions, sorry. I'd like to see him post a thread with in depth information on the mechanics of this operation.
Sharing information. Isn't that what a forum is about?
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20150009399.pdfPlus it will be easier to build. I can make 6 in 6 hours now but at first 3 hours it took until I got the hang of it lol
Have you made a light before? Ive made 14 so far and have the parts to build 4 more but I don't need them just yet(no room). It wouldn't take long for him to put them together plus if he lakes them himself he'll know how to fix it if something goes out.
1820 watts from the wall and 1019.2 PAR watt in a 4x8 tent
View attachment 3565793
Have you made a light before? Ive made 14 so far and have the parts to build 4 more but I don't need them just yet(no room). It wouldn't take long for him to put them together plus if he lakes them himself he'll know how to fix it if something goes out.
1820 watts from the wall and 1019.2 PAR watt in a 4x8 tent
View attachment 3565793
Nice, exactly what I was looking at! good to hear conformation.Since you can place a reasonably large offer I'd look into 3000K/90CRI version of the CXB3590. It has an amazing efficiency for a high CRI LED with lots of output in the deep red range.
BEAUTIFUL!
what's cool about our building is the HVAC (can be made super cool). it was designed for HPS and HID. We are hoping to save $$ by keeping heat removal passive... I am going to look this up but human nature wants me to just ask... what kind of heat does this produce?
I would love to know that but LEDs are moving so fast that research is constantly being updated....so how do the numbers compare for a 90 cri versus a standard 80 or 70 cri cob plus top bin supplemental 660 nm deep red stars ?
everything you quoted here is true, BUT repeated grows in the mmj community have easily shown that a rich white phosphor cob is blowing away blue+red led systems. With a base of 3K cobs I like to supplement my grows with a teensy bit of 660nm, 450nm, actinic blues, but its not really necessary. with the white cobs you will get better canopy penetration and less light burn.I know the importance of white but I believe that 660nm should be the main light source. wonder what you think? I am here to share info and learn from the experience of the DIY!
thank you so much! We are going to test both side by side and will share!everything you quoted here is true, BUT repeated grows in the mmj community have easily shown that a rich white phosphor cob is blowing away blue+red led systems. With a base of 3K cobs I like to supplement my grows with a teensy bit of 660nm, 450nm, actinic blues, but its not really necessary. with the white cobs you will get better canopy penetration and less light burn.
My opinion is that the primary light source should have a big wide fat band in the 600-660 nm, (3000K to 4000K cobs)
That's tricky. HLG-185H-C1400 should be able to run them all at about 50W each, provided that they have Vf <= 35.75V @1.4A. Voltage may vary, impossible to tell what the actual value is.http://m.miniinthebox.com/en/diy-50w-3950-4000lm-1500ma-3000-3500k-warm-white-light-integrated-led-module-30-36v_p933080.html
Just ordered 4 of these... Looks like a knockoff of the Cree 3950s. Description is a bit vague, I'm still not certain if 50w is the rating or the recommended wattage use for one chip. Either way, I should be able to run about 40w thru each and worst case scenario I'm running them at 80%, no harm done, correct? Says fv is 36v, max current 1500ma. What driver do I need to run all four?
That's like the China version of my white and red light. You'd just want to make sure the parts are high quality, the heatsinks are sufficient, things like thathttp://www.alibaba.com/product-detail/CXB-3590-COB-LED-Grow-Light_60351737134.html?spm=a2700.7724857.29.156.FEHR5d
Experts... what do you think. I have been in contact with the company and if everything works out, this would ALMOST be cheaper than doing it ourselves...
I'm not familiar with the company or their units.http://www.alibaba.com/product-detail/CXB-3590-COB-LED-Grow-Light_60351737134.html?spm=a2700.7724857.29.156.FEHR5d
Experts... what do you think. I have been in contact with the company and if everything works out, this would ALMOST be cheaper than doing it ourselves...
YUP! me too. here is another one... the design is killing meI'm not familiar with the company or their units.
But a couple of warning signs to note:
- not clear what cob units they are using (3590, 2530 ??) nor what bin cobs. have to assume lowest bin available from cree.
- still uses a lot of 5 watt single diodes, losing the crazy efficiency advantage of white phosphor cobs.
- they claim using 18gauge wire is better than using 16 gauge wire .... clearly indication whoever wrote the ad has no idea what they are talking about.
- specs are unclear as to how many watts at the plug.
- doesn't address distribution over the canopy (one big concentrated hotspot)
- personally I'm biased against Chinese led companies, since they have strange quality standards.