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it's definitely worth trying just pointing out that in nature the plant probably gets visible and infrared radiation at about the same time with maybe a little atmospheric warming before either light.

This will be interesting. Not sure many plants in nature experience the infrared before visible light as sun is on the horizon at the time, infrared is largely line-of-sight and there is not enough time for much heating of the atmosphere to occur before the sun comes over the horizon and you...

I've used those too but honestly you should be able to go four days without watering. How about transplanting early?

Definitely germinate in controlled environment - it tales a lot of the guessing away

approximately what Kelvin were the lights - 2700 or 6500?

Got it - I have to wait for house guests to take off this afternoon then I'll take equivalent measurements.

that'll work

You read correctly. Probably my confusion earlier as I'm fully medicated. Never seems to be much foliage but I suppose more than ten percent.

We can calibrate your meter against mine with identical lights and a couple of rulers. We'd at least know if it was better than +\- 25%, if so then that's a great price.

Maybe I should buy some stock in a light meter company although somebody could go through the trouble of measuring the key distances for each kind/wattage of light and post a table.

useless - it only goes up to 4,000 fc (foot-candles=lumens per square foot)

Not much good at all for growing needs - just a teaser

thanks, if you nail the temperature/light frequency questions in your balls to the wall thread then with this I think we've got most of the difference between indoor and outdoor grows covered.

Sounds like a 10,000 foot-candle meter and I'm going to jump out on a limb here and bet that our plants can use more light than that, how much more is an open question.

Pruning makes more sense in indoor environments where the light is a static point source compared to outdoors.

I've summarized my ideas in a new thread https://www.rollitup.org/indoor-growing/349293-myth-busters-s-light-stupid.html. Let me know what you think.

What do lst, topping, fimming, top and prune, scrog, sog, stadium, vertical, and all similar indoor training techniques have in common? Why do some growers seem to do great with these techniques and others struggle to make them work? Are the lighting recommendations of 7,000 to...

Pepole are just not understanding this technique. You are not cutting the energy source in half. You are cutting at most 6 or 7 fan leaves and they have never represented more than 10% of the plant's green mass when I snip. If you want to discuss the effect of temperature changes during...

Not much grown at 130 that I know about. All strains i know die indoors at temps way below that

You should check to make sure it was not some special optical grade you cannot get