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I meant the too big pot comment in reference to the amount of water it would hold. Lots more than a smaller pot. Plant has to drink it all first before needing more. When using big pots, water once then go away for a while.

Thermal runway is only a problem if you are running them hard. Even then it is caused by a breakdown in cooling. The driver is probably fluctuating on voltage far more than the losses from the entire circuit, keep that in mind.

You answered your own question.

No, I meant any part of the plant getting 200 umols will still produce quite well, eg. those lower branches and sides. So if you are hitting the top at 1200, another 20' down or so might only be 200. That 200 will still produce well, significantly better than 0-50. To hit high yields you have...

They are in pots far too big for them so definitely over watered. Patience.

I wouldn't call it a cut off. The higher intensity will also reach further down into the canopy and could explain the increased yields. If you aren't running a deep canopy then you might not see an increase. With your numbers it looks to be a 21% yield increase for a 50%+ increase in optical...

It could be. Go at it and run a test. Nice to see that we are at the stage of researching the impacts of negative conditions on these plants. This run I decided to test for minimal water and nutrients. The plant has some good rebounding capabilities to handle drought conditions and so far just...

He did by listing the light intensities for various growth stages in veg and flower. I would just toss in that for seedlings 50-150 umols is more than enough. While PPFD is an instantaneous measurement at a location, it is more important to figure out the daily amount the plant can handle, DLI.

If you are comfortable with such low standards then power to you. Ignorance is bliss. Those in the know can sit back and laugh until the thread gets shut down for violating the forum rules regarding advertisers. It isn't fair to those who pay especially when they have superior products.

So you bought the lights already and then are asking if they work? Sounds like a schill to me. Oh the proprietor PLC isn't an advertiser here and is just getting around the posting rules. Seen better crops under blurples anyhow.

Even after all the vitriol by the op, clean up of the thread of previous posts with helpful information and being told by others that it isn't the spectrum's fault, the answer is still the same. Learn to grow.

Why are you assuming it is the light's fault?

You get tagged with that and travel becomes an extreme pain.

We need more people to buy them to bring the price down. They should be as cheap or cheaper than lux meters but they just don't have the volumes of sales to justify discounts.

Have you considered just taking the cuttings you need for the next cycle and flowering the mother out? Then when those clones reach maturity, take some cuttings, rinse and repeat. Keeps the strain going like having a dedicated mother but you don't have to worry about something happening to the...

Get the PAR meter. Hydrofarm ones are under $200 and work great. Donate lux meter to struggling photographer.

Being salts they should be fine... that's the point. Mind you the quip is entirely true so kudos.

Does salt go bad?

I would post pictures but I do like to travel to the US from time to time, so no, until it is legal federally in the US, I probably won't. Don't mind sharing information but not at the cost of my freedom. The sativa is a beast and reaches the top of the chamber, I have to curl it around the...

You got it. That is how I am going to be running plants from now on. Figure out how much light they can use per day and keep it around that level. Then use that information to maximize the next run with that strain. It has saved me a lot in power which makes it worthwhile. It doesn't say the...