Quote Originally Posted by AfricanAlien
I read this statment originally on the Perfect LED Grow by physicsnole

And i have not seen any direct reply to this statement. Would this work?
12 hours Standard Indoor Darkness (SID) with no Far Red is approximately the same as 10 hours Standard Outdoor Darkness INCLUDING Far Red.

735nm Far Red alone is the fastest darkness spectrum, so it takes less time than other spectrums to produce the same number of genetic clock ticks (i.e. 12/12 like results).

I wish more peolpe were familiar with 14/10 to 10/14 schedules.

Speeding up the Darkness to get 12 hours of "work" done in 9 to 10 hours works, but putting more DAYTIME light on the daily clock by using more energy at night is not as energy efficient as optimizing the night hours for Photosynthesis in our view.

So yes it works, but it trades time for energy and produces less per watt. Luckily these type of night speed effects can be done with lower intensity Far Red than ballancing out against Red/Orange/Yellow spectrums.

A intense Far Red burst gets things rolling (at Nightfall), but then lower levels of Far Red can be used to maintain the phytochrome populations at Far Red saturation for the rest of the night (or so).

Good Post AfricanAlien. Thanks for sharing that one.

Take Care, Sal.