Quote Originally Posted by Mother
Taking that ratio, I can then figure out the time factor for each type of light, then weight them accordingly. My guesses for those are 5.5 for 660nm light and 2 for red incandescents (from post 168 of my last grow log). Weighting those ratios, I get an overall time factor of about 5.2.
Ok this is what I wanted too see you post..

Your schedule of 6/7/10/1 is really 6 hours of blue (pal) light and 8 hours of red (PAD) light and 10 hours of SID (standard indoor darkness). You don't need to split up the red PAD light (just so you know). Your estimate time factor of 2.0 for red INC is correct and you also correctly have 660 estimated at 5.5 awesome!! Your PAD light schedule can have no MORE then a 4.0 time factor just to make 12 hours of SID and that's not including the lag time going from PAD to SID. So if you think your 5.2 time factor is correct then you will not hit 12 hours of SID with that schedule. You will be in the 11.53 range of SID not counting lag time.

Let's re-cap.... You are using 8 hours of PAD and your also using 10 hours of SID. So using 8 hours of PAD you need to get approximately 2.5 hours of SID equivalent counting lag time. So doing the math you cannot go over 3.2 on your PAD time factor to achieve 12.5 hours of SID.

Let's re re-cap...

8 hours of PAD divided by 3.2 (time factor) is 2.5 hours of SID added to your 10 hours of SID = 12.5 SID total.

Hope this makes sense.

What ever light schedule you chose to use it's all about PAD time factors to get your SID equivalent time correct. :thumbsup:
Dogznova Reviewed by Dogznova on . Second Martian Method attempt This thread is my second attempt at using the "Martian Method" or "Artificial Darkness" lighting technique developed by SalMayo and associates. For full disclosures and disclaimers, see my first attempt: http://boards.cannabis.com/grow-log/165934-first-attempt-24-hour-martian-method.html#post1945600 but to summarize: I didn't invent this lighting technique nor do I claim to fully understand it. I'm just testing it to see for myself what it can do. This time I'm going with one Heavy Duty Rating: 5