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Oh wow 120mm? Awesome feedback, I'll look at some slightly smaller ones and save some coin. Didn't even think about thermal paste thanks for that. I imagine the dimmer is optional. Any specific ones you can link to that'll work for reference so I know what kind to get?

5x CXB3590 3500k $200 5x Ideal 50-2303CR $15 5x Ideal 50-2300AN $10 5x 180mm pin fin heatisnk$100 5x reflector's 1x Meanwell HLG-240H-C1400B$70 Do I need 180mm pin fin heatsinks or can I go smaller? Anything else you guys recommend to change or just order away? Is there anything else Cree is...

Should I be getting reflectors or glass lens from Kingbrite? What size pin fin heatsinks? I'm finalizing my order now!

What spectrum should we be getting for these cxb3590 COBs? I'm getting 5 3500k? A mix of some?

Should I be getting 3500k COBs? Or something else?

Meant to say CXB. Edited. I looked at a few kits and I rather save the $100 and just build it myself and source things from KingBrite. Appreciate the offer though. If I end up getting lazy then I'll look into a kit.

Hopefully this will be my last question. My list below. 5x CXB3590 $200 5x Ideal 50-2303CR $15 5x Ideal 50-2300AN $10 5x 180mm pin fin heatisnk $100 1x Meanwell HLG-240H-C1400B $70 What spectrum should I buy the COBs in? 3500k, 4000k, or one with additional lightning? Are there any additional...

Snap! That's exactly what I suspected. Such a big help. The HLG-185h-36b: 3x Running at 1600ma = 4800ma (Under the 5200ma limit?) About 92% loaded? Ironically, 92% loaded is about 92% efficient too? I looked up his video and his is the one that either made a mistake or confused me. I...

Quoting your earlier post here. The HLG-185h-36b: What do the 3 series of "codes" specify on this driver? HLG, 185h, and 36b? Found some conflicting stuff online so I figured I'd ask.

I'll get that info when I get home on the temps. It's an indica strain. I want to say it'll get up to 80, and down to 73 or something. Night time is hotter though. The lights come on at night to save on power bill. I want to move on to DWC for my next grow as well. Faster veg, faster end...

Definitely let me know how your new setup goes! I've let my tops get as close as 4-6 inches. No bleaching or anything effects so far. They still stretched a little too much after flower still. I backed it up to 10 inches now so it covers more of the canopy. Not too impressed with the light so far.

Very good info. I have a feeling I'm at around 300 PAR with the Mars light i have now... Would love to get into the 1000 region next grow. Need to get a meter on Amazon so I have a starting point.

I could be completely wrong, but I was under the impression that these COBs run most efficient under powering them at about 60%. To grow good plants you need a minimum PAR. The more lights you have, the more you can DIM them to get to the minimum PAR needed, and drive them at their most...

I appreciate the response! I was thinking 3 might be better after I posted this. I want them to run as efficient as possible i guess. The more COBs the more efficient you can run them from what I gather. I can't afford a lot of them though. What PAR should I shoot for before reaching...

Hope somebody could help me. I'll make this short. Looking to power only 2 CBX3590's on a single driver. What driver to use? 36V or 72V COB's? What is the area a single COB can grow? My growing area is narrow. 4ft wide, 1.5ft deep. Will 2 COB's be enough for this you think? Will this be better...

Looking to build a CXB3590 setup. Will 2 of these be an upgrade over my Mars300? Will use for 1-2 plants. Will 2 COB's be enough? Should I opt for 3500k? Or should I have 2 different spectrums? Most efficient driver for these? Are lenses needed?

Hi guys! I've been doing a lot of research (Still way more to do). I want to build a CXB3590 Cree COB setup for a small single plant closet. I currently have a single Mars300 setup. Growing mostly Indica, but Sativa in the future for sure. I do plan to SCROG Will 2 COB's be enough? Should I...