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If we're supposed to wire the channels in series for a single board, I'd recommend on the next iteration flipping the positive and negative side on on channel that way the channels line up as follows: C1 C2 + - . . . . . . . . - + For...

Cannot find an another to this anywhere... got a free five back of Superstitious x Bep. What is Bep?

What are you guys doing for heat dissipation?

If you don't have anything useful to contribute, feel free to move on from this thread. Your posts are really making it hard to follow the discussion. Just popping in to mention I ordered two lights from Vegas and they came in prompt time. Once the clones have rooted, they'll got under 2 of...

Yeah, I'm trying to avoid buying two drivers and still use the two boards in series. Might not be able to make it work...

Looks great MoFlow! What did you use for a driver and how'd you wire? Thanks!

Hi all, Having an odd problem. Oldest leaves are yellowing. I already plucked off the two oldest fan leaves which were totally yellow, now it seems to be "spreading" outward. Help? Setup description: DWC, 1 plant. Res: 73F temperature, 5 gal, 2 airstones PPM: 900 pH: 5.5 Nutes: General...

Basic info: DWC w/ top drip Res temp - 23C / 73F Nuts: 2000PPM general hydroponic Supplement: 2tsp/gal HydroGuard 2 large airstones Roots do not feel slimy at all and no smell. The color of my roots is kind of surprising. That being said, the General Hydroponic Micro is very brown. Is this...

Any idea when the Citizen 1212 90CRI 3500K will be back in stock?

Hi all, I'm building a light for a 3x2.5 sq ft grow space, both veg and flower. I'm going with 4x citizen 1212 90cri 3500 lights driven at 1050mA and I'm just deciding on a driver, which is where I'd like input. I'm thinking that I'll wire them in parallel and use a constant voltage driver (so...

You're confusing watts as an input to your light and watts as a measure of wasted energy (heat). In both cases, you're measuring an amount of energy, but they are very different. A light that is fed 1000W of electricity emits a certain percentage of that as light and a certain percent is...

Test report here: https://www.meanwell-web.com/en/download_datasheet.php?products_id=HLG-185-48A&type=2 Shows you can squeeze 4.2A/220W out of it. Clearly running it outside spec, not sure how I feel about that, but it's possible to say the least.

Great, thank you. I have never seen these test reports before. Am I correct in assuming most people running a HLG 185 48A are wiring their COB's in parallel and using constant voltage mode (where all the typical warnings around thermal run-away and variable current apply)?

Looking at the meanwell hlg 185H-48A driver on cobkits - data spec says it's rated for 3.9A/187W, but the website says "Max current: 4.25A" and lists "3 1818@ 75.3W each (226W max) " as a potential combination. Is this just an error on the product description or am I reading the data spec wrong?

I'd getting ready to ditch my mars hydro and shift to COB/QB. Preferably, I'd like to have this done by the time I switch to flower (May 1st). Is it reasonable to expect QB's to be shipping by then? @robincnn, I know you mentioned first week of may, but is that for component arrival or...