Wattage doesn’t really matter unless you know photon efficacy of your fixture. You want to target ppfs average of about 400 umols per second for veg and 600-800 umols per second for flowering. A more efficient light will use less power to get there than a less efficient lamp.
@dbrn32 so i am sticking with the bridgelux Gen @ 2foot 3500k strips going for a simple build only being this would be my first build what would opinion be on building a 4x8 using angle alluvium (thanks to home dept) and 46’’ heatsinks from hetsink usa ( or 3/4 204 from HomeDept) running 10 strips in series on an HLG-320Hc1400A
1400ma is a little harder than I typically run them, I usually go 700ma or 1050. But it certainly can be done. Heatsink profile would disperse heat better, and may even be cheaper than angle. The strips are just about 1" wide, so i would choose 1" profile over 3/4. Last time I bought 1" angle from home depot was $15 per 4’. There can’t be that much savings over the 1" from Heatsink USA.
All else considered, you would probably want minimum 3 drivers worth to flower a 4x8. 2 isn’t enough, and 4 is probably on higher end of what most do.
@dbrn32 only reason I asked is LED Gardener posted
I suspect those numbers to probably be more likely than data sheet specs as well. However, having built several fixtures with the eb strips, I can tell you they run plenty warm at 1050 or even 700ma.
Unlike most of the competitors, the eb’s have a fiber resin mounting plane. This is not thought to have the same thermal transfer capabilities as the aluminum most use. That would mean that whatever the led junction temp is the heat will not be pulled away as well. The higher tj is lower light output and expected service life will be.
My question is, have you priced out going with two hlg-185h-c1050a drivers and 9 strips per driver? You should be able to get the two drivers close to same cost as hlg-320. And additional 8 strips per fixture would run about $40 i think. I think you would end up with about a 430 watt fixture as opposed to 350 watts, and cooler running with higher efficacy.
21:03 on video only reason why i asked about the HLG300h-C1400 saw on the video and i was looking at what LED Gardener posted>. and i was going to run both of them from one power supply outlet but as you suggested running 8 2’foot strips with x2 HLG-185-c1050a x16 strips with 48’’ inch heatsinkusa gives me a little wiggle room to mount and build a spin system
Those drivers will run up to 9 560mm eb gen2 or 3 each. 8 per driver is no problem though. They also make 1120mm, may be cheaper worth checking into.
running in parallel or series ?
Hey there, I’ll try to participate. I’ve been growing for a few years now. It gets real windy where I live so I decided to try something on the inside. I had tried growing something on the inside couple years ago when I first started. I had rigged up all kinds of different lights that we had around the house. What I created was a big old fire hazard. But it worked. I had to trellis net going and everything. anyway this year I came up on one of these 750 watt skylights with 12 bars full spectrum and thought I’d see what it could do. So I got some OG Kush and some gorilla glue. Got them all the pop. This is what I got now.
Is it possible that I’m going to need more lights. All of these are autoflowers, but there’s 27 of them?
Man the build quality on these are top notch. Was skeptical on them seeing as I could of pretty much got ANY other light on the market for only a couple hundred more and not a lot of reviews on them. Am I glad I stuck with these tho. Haven’t got them all together as I have the get the lights 1 hour before work curse happens every time. All I gotta do when I get home is hook up the driver and dimmer and im ready to roll. Will post pic on and running also
Very awesome dude congrats!
Nice, those should be some kick*ss lights.
Series. If you want to do something with parallel circuit you would need cv/cc driver that has output voltage around 20 or 40 volts.
Maybe. What do you have for specs on the lights and how big is your grow space?
Sweet! You will have to give us update when completed.
Look at the driver’s posted
Ok so light is up and finished finally. Stayed over after work last night so had to finish hanging today when I woke up.
First impressions is this thing is bright AF! Spectrum feels a little more towards the white then the yellow compared to the HLG but looks pretty close to the PLC spectrum. This thing throws some rays at about 80-90 percent it covers a 4x5 evenly all the way through. Haven’t ran for more then an hour but the heat sinks were cool to the touch may be because the heat sinks are massive. Which bring me to about the only con I could come up with Is these things are pretty heavy, between the heatsinks and the metal framing. On the other hand it hung up in my tent without sagging down the bars so maybe its just heavier then anything I’ve had before. All and all I am VERY satisfied with this light overall and recommend. Will try to keep updated after my first full run vs the PLC.
What about them?
Sweet, nice job!