I would spread them out to form a square. I used 8-CXB3590, 36v, 3500k, CD bin with 2-HLG-185H-C1400 for a total of 400 watts 36v x 1.4a = 50.4 watts x 8 cobs = 405 watts, and a good PPFD to go with it. i mounted my drivers outside the grow space for better heat control. I also added 18 Far Red Led diodes with an llpc-35-700, to the bloom light. good luck. peace.Should I run one large heat sink or make a frame with separate heat sinks and fans for each cxb?
Standard dimming is a 10,000K pot with a 1000k resister on the positive leg with a meanwell C700B unit. The C700A unit has dimming built in with a pot behind the black bug. peace.I think I found all the parts I need. Just researching dimming circuits now and trying to decide on a configuration. Would it be beneficial to include 2 5000k imiters on a separate driver to use during flower? Or can I get good results with just 3500k? I'm planning on running 6 3590s (3 on each heatsink) with 2 drivers (dimming), 2 fans and will use my existing 240v line.
It appears from the driver matching schedule produced by SupraSPL that you would need two drivers for 3-CXB3590, 36v, 3500K cobs using 2- HLG-12H-C1400. That would give you 300w 50w/SF peaceIm looking to do the same setup for a 1.2m tall 2x3 space. Id imagine that 6 cobs spread out running at 1.05a would get a good PPFD in either space, maybe Rahz can chime in
Looking great @selfmedicator462 ! I love the way she is all spread out now. How high is the light now? I ran mine slot higher on the first run but I had a 10" swing in canopy variation. 18" is what I saw when I started down this road but the variables are endless so a couple inches above the point of bleaching sounds good...How high should I keep this light above the canopy? I've been at 6-8" but have gotten some bleaching after I switched to 100% power. Other than minor ph meter mess up this plants looking good. View attachment 3644006
I was going to say what PV said. I too started at 6-8" with no lens/reflector. Turned a few of the tops bleached blond. I now go for 8-10" and only the occasional very slightest of bleaching on the tips. I like to lay down the max photon field I can get away with at about 15 PAR watts a square foot.How high should I keep this light above the canopy? I've been at 6-8" but have gotten some bleaching after I switched to 100% power. Other than minor ph meter mess up this plants looking good. View attachment 3644006
Agreed. When you've got the light spread out well, no point in raising it higher than necessary.so a couple inches above the point of bleaching sounds good...
She is looking fat and happy, nice growing brother!Really diggin this light! Steady 77 degrees in the box, 72 outside. View attachment 3651275
Are you looking at building a far red 730nm flower initiator or just more red?I'm not sure. Not sure fans were necessary. Maybe a fan switch to turn them off. I'm still reading up on "red", might add some before next grow.
Far red. Somebody mentioned it when I finished this light to incorporate it in.Are you looking at building a far red 730nm flower initiator or just more red?
I included far red leds into my light 12 far red led diodes 3w on an lpc-35-700. Have built two of these adding royal blue12 led diodes to my veg light. They love both colors got them at rapidleds along with driver cheapesy 3 day delivery. Peace looks goodFar red. Somebody mentioned it when I finished this light to incorporate it in.
Would it be possible to add a fan controller and on/off switch for them to your setup. Run the cobs soft, run the fans at 50%. Run the cobs hard, have the fans at 100%I'm not sure. Not sure fans were necessary. Maybe a fan switch to turn them off. I'm still reading up on "red", might add some before next grow.
I could. Really with these 6" heatsinks I don't think fans are necessary. It barely gets warm.Would it be possible to add a fan controller and on/off switch for them to your setup. Run the cobs soft, run the fans at 50%. Run the cobs hard, have the fans at 100%