How to calculate the 730nm time after light's off?

I ordered few strips of kingbrite 730nm 2 years ago but now, had few money to buy a separate light controller and would like to implement the 730nm after the 12hours ON.

The 730nm are the kingbrite quantum led bar QB20 CREE XP-E2 red 730nm led grow light (PCBA only) L890xW45x2.0mm

They are powered by a HLG-240H-C1050B, 1050mA.

How do we calculate the ON time after lights are shutting down?

Area: 5'x5', 3 bars, each one has 20 XP-E2 red 730nm diodes.

At the moment, I run the driver at 7% (for the 730nm), 20% for the 630 and 82% for the 3k.

Any help would be really awesome! I'm lost on this one!

Thank you!

What makes you think there is anything to calculate?

My reds are set come on 5 min before lights out and stay on 5 min after..

here in this post by Randomblame it's explained

Kassiopeija said:

here in this post by Randomblame it's explained

UV Suppliment Lighting

Like every other led made it is equivalent the 9 watt led in my bathroom is equivalent to 60 watts I am well aware of that marketing ploy and really it is a total lie and can make buying online difficult. Same goes for felt-fabric pots, 5 gallon isn't 5 gallons, maybe like 4 gallon if, it...

www.rollitup.org

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I guess you learn something new everyday!

Kassiopeija said:

here in this post by Randomblame it's explained

UV Suppliment Lighting

Like every other led made it is equivalent the 9 watt led in my bathroom is equivalent to 60 watts I am well aware of that marketing ploy and really it is a total lie and can make buying online difficult. Same goes for felt-fabric pots, 5 gallon isn't 5 gallons, maybe like 4 gallon if, it...

www.rollitup.org

Click to expand...

Do you know where the 2000-4000 umol for EoD treatment value comes from?
I have seen it repeated multiple times but also saw statements that farred reduces secondary metabolites in cannabis.

Lou66 said:

Do you know where the 2000-4000 umol for EoD treatment value comes from?

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I'm afraid no, though I faintly remember someone (else) posting a study under that context

Lou66 said:

I have seen it repeated multiple times but also saw statements that farred reduces secondary metabolites in cannabis

Click to expand...

It could be, but I doubt it's as straight forward as stated. At least, there's research by Fluence that a 6:1 660:730nm Ratio increased Terps, and some review even claims higher net cannabinoid harvest from 730nm (guess continous).

Thing is, sometimes research into lightcolour is swayed by the interdependancy of the colour-ratios...

Weird...

I have one strain pheno X that had a very different output than when I used 3k/660/730 at a way closer ratio than the last one. A lot of foxtails vs precious one. I'll try it again just to confirm but that's a huge playground if they all react differently to different spectrums.

I even tried to keep the 730 on for 5 minutes after main light, this particular pheno took more time to mature... Which goes against everything I read about the 730 at light's off.

I'm curious what kind of plants are produced with these lights?

Star Dog said:

I'm curious what kind of plants are produced with these lights?

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they have leaves and they are growing toward the light.

what do you mean by "kind of plants" ? it really depends on the genetic/pheno... I had one that stretched like crazy, others that are still bushy