I'd do 9-12 90cri 3000k 1212's.Hey cobkits, I was wondering what would be a nice setup for a 4x4 tent was looking at your clu048s that you've got on sale for $9, what would be better for a flowering light 80 or 90 cri, was looking at 3000k or 2700k ? Or a mix of bothor is there something else I should consider for a 4x4 space? Thanks
Voltage and thickness of wire are unrelated. For example, when wiring PBX telephony extensions I am dealing with a constant 34-50v that peaks at 150v when a line rings, on hundreds of feet of 22 awg pairs. The incredibly low amperage makes the current extremely weak. Simirlarly if i take apart a transformer from A microwave for example I can unwind the outgoing coil and replace it with 2-4 wraps of 8-10 gauge then use the 2-3v it creates to melt a framing nail in less than 5 seconds. Amperage is what blows inadequate circuits more often than voltage unless you are over driving a rated component on the board like an ic or capacitor beyond its max voltage.Running 4 CLU048-1212's wired in series, ~144v/~200w, sounds like a bad idea on these, yes? I can't post links but it seems like where you can find ratings for these things (digikey, not really the amazon/ebay listings) it's typically 12v 5a. They do accept thick wire, but whatever is inside sounds like the weak link.
At 3:07 growmau5 is using the same connectors I have for a high voltage setup but doesn't mention any voltage/current concerns.. I use them for 12v applications like my heat sink fans, and ~20v low current solar applications, but for connecting remote drivers to my fixture it seems a little... sketch?
Hey Cobby,
I just purchased 18 of these engines for a 4x8 area
Been swamped with work but finally got this 9 cob light assembled. I was going to test this in a 4x4, but should I entertain quantum boards in pictured locations?
Do you need more light? it will make your array less uniform. will be fine if you hang it high enough
What did you see that made you dial down your 640w light?
If what you're after is a larger hot spot in the center, then yes, absolutely.
I guess that was part of the question, I wasn't sure if I had skimped on light for a 4x4.
That light is on its maiden flowering cycle right now and plants just seem stunted if I exceed about ~70% power even at 2 feet canopy height. I'll try to crank it higher in a bit as I near 35ish days of flower
That's great by anyone's standards...but he is running 20 hours a day to get that?
I'd like to see this done with just 1 light. Here is his quote:
I absolutely agree, and I hope I didn't come off as a jerk! I've been re-reading the Far Red thread and there is some good talk about DLI which I've never really thought too much about before. @Photon Flinger has really piqued my interest in this as he had/is only giving the plants around 6 hours of light. I've also thought about how much light is too much and if it's the sustained source that can cause problems. Perhaps the guys that run the lights for a few hours on, a few off throughout the day for veg would help eliminate some of those problems. I'm also now thinking about the far red and how much rest time a plant needs before it can utilize whats it's captured. I wonder the impact of using some far red at the end of each of those veg intervals to put the plant to sleep right away so it can actually rest.
