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I definitely would not split into 120v circuits, you will end up needing more power for heat and AC, dehumid, fans, and pumps and will want to use less amperage. Get yourself a little 60 amp main lug and add 1 double pole 20 amp breaker, run your 4 lights off of that, and 1 single 20 amp...

I'm new to Useful Seeds, just found out about them today. I've been reading this thread and like what I see/hear. I've only grown regular seeds, but need something a little bit quicker right now, so considering feminized, and your seeds are highly recommended. Just a couple questions, and...

Has anybody run the Durban Cheese from Relic? I started some a while back and they grew very nice and beautiful. I had 2 pheno type mothers that I took cuttings from and started the veg about 5 weeks ago, started having problems and found out I had a Russet mite infestation. Was going to destroy...

That is what I'm wanting to do, take just a few of the best plants and take clones from them. But, before I did that I would spray the plants with some nasty stuff, then cut clones and isolate them. But how can I be sure that the clones don't still have the mites when they are ready to go into...

Back in the day I vegged with hortilux blue MH. For the last couple years I've been using cmh. I hate cmh, they always contribute to stretchy lanky plants. If you look at the cmh spectrum (even the 4k) they have very little blue. Maybe I'm not using the right cmh system, but I'm done with cmh...

Just found out the deviating news that I have russet mites in my veg room. I have plants grown out from seed that I put a lot of work into and I was getting ready to put them in flower, so it is painful to have to destroy all of them. Does anyone have experience with actually winning the...

Just wanted to follow up on this. Found out the horrific news that I have an infestation of russet mites. Really nasty stuff, very hard to get rid of and they do significant damage. The recommendation is to destroy that plants and reset. This really sucks because I had 4 strains that I nurtured...

Just curious was this in veg or flower?

You're plants don't look bad, but it is a good question anyway. I've been struggling with a similar thing, leaves curling down, stress signs. And at this point I'm convinced that it is because the lights are too intense. The thing about LEDs is they have a much wider spectrum than HPS, so if...

You are right, my mistake. I was just noticing that the blue spiked to 100% at some point, but overall there is definitely more red. I chose the 5000k, I think the 5700k was mentioned somewhere else. But they both look good. But, I was wrong to suggest that the Thrive have a spectrum close to...

You lost me here. Sorry to ask you to explain but I really value your knowledge and don't want to miss anything. Do you think having my leds at 19w per sq ft at 20 inches could have been the cause of my problems of these plants not doing well with leaves curling down like over-watered symptoms?

Good tip. I just bought one, opted for the $30 one.

This definitely concerns me. But let's be clear, LED like Fluorescent is just a specific technological means of emitted electromagnetic waves in the visible spectrum (not including UV). There is nothing inherently different between LED and Fluorescent in terms of the "light", so whatever plant...

I understand what the graph is representing, I just meant I do not like the spectrum of florescent for veg and would never choose it over LED. I've decided on these: EB Gen3 Thrive CRI 98 5000k. I'm going to do 8 1120mm for a 4x4 area at the nominal current of .960A @ 40.6v for 311w. Using...

That is good for removing Chlorine, it will evaporate out. But letting it sit will not remove minerals like calcium magnesium and sodium, which are what contributes to the higher ppm of tap water.

This doesn't make sense to me. You are showing a graph for 5000k fluorescent that is high in the green and red spectrum and week in blue, when all I've been hearing from others is that for veg high blue is better.

Sounds good. My question is what do we want to have in our spectra? So, the 5700 has strong blue, but the red is really weak, like 40% in the 600nm range. Is that too little red? Could that cause some problems in slow growth? Anyway, the question is probably moot because I cannot find gen3 5700...

The graph you show from your test of the Thrive is very different from the graph Bridelux shows in their datasheet. I understand that companies always what to put their best foot forward so-to-speak, and some of them outright lie. Do you have an idea about why their graph would be so different...

Yes, good points. But, I am talking about Color Rendering Index, and you might be talking about Color Temperature. And I just did some research on the difference between these and I'm still not sure about what it actually means. :) As I understand it the higher CRI gives a broader color...

Bottom line question, does it really matter in veg having CRI 98 vs regular CRI 80? Meaning will the plant grow better, i.e healthier and/or faster?