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I want both of them! I'm not sure how much red I need so I'd use the datasheets to figure out what currents to run them with the same output and put them in a cage match against white.

He says one side looking better but no actual data, input wattage to weight/potency. It's an interesting grow but not the kind of controlled study that I'd like to see. https://www.luminus.com/products/horticulture Those cobs would be interesting to play with. And Citizen...

Nice. That was in January. Was the grow finished? I can't tell a difference by eye, would be nice to know final weight, purity, terpine content etc.

I recall a couple red based cobs, one was a red/white flip chip (?) or something like that and the other was a solid red cob. There were some compact PCB based arrays but they were really pricy! I would be interested in the small PCBs if the price was better. My interest would also be peaked if...

I've used (and have in operation) bare cobs, lenses and reflectors. My lamps are all 4 cob, either 12x12" or 15x15" emitter to emitter. I also have a couple CMH's running. I really like using the optics because the PAR readings are more sustained further from the lamps. They're all 50 watt...

I checked and still have a small coffee grinder I haven't used in years. Just processed a quart of Mega Crop in about 3 minutes... problem solved. Cheers

Thanks, the coffee grinder seems like a good suggestion, even if it's all in my head it will be nice to not need to be concerned about the powder/ball issue. I just did my first rez change, dissolves quickly. Faster than Maxi. At 5 grams per gallon I'm getting around 760 ppm (and my tap water is...

The 3618s are 180 watt emitters at nominal voltage. The citizens I've used are 1825s which are 60% efficient at 50 watts. I haven't done the math on the 3618s but I would be surprised if it's not 70% efficiency for 3618s in the 25 watt range. :shock: Expensive, but I want that. The AC savings...

Keeping it good, you mean NPK ratios due to the little balls? Or gunking up in hydro?

It's best for profit margin I guess. I still like cobs. I like big fat pin fin sinks and under driving. I still have a dream to build lamps from CLU058-3618... maybe 25 watts a piece :D just for the hell of it.

I just got my first bag of Mega Crop, excited to be trying it. I have read that they tried grinding the little balls and it somehow made them more difficult to dissolve. Not sure how that works but... They do tend to find themselves huddled together in the mix. Is this something I should be...

Any LED fans from 2015, you remember plenty of naysayers. I was at the grow shop yesterday and chatting with the owner. Another customer mentioned he was using LED and I was a lil excited, asked him what brand. After he left I said to the owner, good to see some peeps using LED. He said...

Yea, I like to think I pack the photons in there but it comes out to 40w per sq/ft. (20-24 par watts) which isn't extreme but not the most efficient either. 2g per watt is impressive. Will you tell us more about your light footprint @oill ? My best effort ever was 680 grams from 10 sq/ft for...

Light output varies depending on the lamp, emitters used and what current they run at. I have two CMH and various DIY LEDs. Most of them now are 200w square lamps using CXM22 at 50w each. I have a couple based on 1825s at 50w each and Vero29C at 45w each. I can pull 1.4 GPW from them with a good...

Vero29C at 70 watts is probably around 50% par efficient. Same with CXM22 at 50 watts. Citizen 1825s are 60% efficient at 50 watts. Vero 29C at 45 watts is around 56% efficient. Those were the combinations I came up with a few years ago. Par wattage = #cobs * wattage * efficiency. If you know...

With mid yield in hydro you can expect around 1.15-1.2 gpw using a LED setup with decent efficiency. Strains that produce more, your yield can be 1.25-1.4 gpw (wattage calculated as output watts). These numbers can be used to determine what it will take to replace your 600w setup with LED. You...

Sealed room with controlled CO2. Other strains doing fine. I can't rule out HPLVD and just read it can be transferred through seed. Hope it's just genetics. Mudballs, thanks. I think I will just toss the beans. Boatguy, no growth in almost 3 weeks now and since the pics the buds have fully...

Well, these are hardly worth harvesting for flower. And Skywalker usually has very good yield. I'm leaning towards bad genetics but I'm wondering, I got several of these beans and I don't know whether it's worth trying with another one? I'm switching to a different strain for the moment but I...

It's far enough along to see it's obvious done growing and we'll into the ripening process.

So someone who has a few cuttings from the same mom is reporting the same thing has happened. I'm guessing it's just bad genetics. I asked a guy at the grow shop if he was familiar. He said not personally but heard there was a virus going around in California that halted growth. My beans are...