12/20

CavemanPoop · Dec 16, 2009

I have been looking for a timer that would allow a 12/20 light cycle and have had little success finding a brand of timer. :-(

I know there have been older posts about this subject but i cant seem to find them now that I am looking. :!:

Anyone with first hand experience using non standard light cycles that have advice would also be helpful. :-P

Thanks in advance all :leaf:

Madg420 · Dec 16, 2009

CavemanPoop said:
I have been looking for a timer that would allow a 12/20 light cycle and have had little success finding a brand of timer.

I know there have been older posts about this subject but i cant seem to find them now that I am looking.

Anyone with first hand experience using non standard light cycles that have advice would also be helpful.

Thanks in advance all

Pretty sure any programmable digital timer can do this, you'd just have to set up 6-7 independent different on/off times

CavemanPoop · Dec 19, 2009

Madg420 said:
Pretty sure any programmable digital timer can do this, you'd just have to set up 6-7 independent different on/off times

ok, I'll need details as to what process you are actually talking about... Are you saying to modify a timer? Or is it a random tooling set of on off? If so then I believe that would light cycle stress the ladies and cause male bananas which would be very undesirable. I would Like a consistant 12 hours off and 20 hours on. i would just like to know of a timer to do just this, thanks! :hump:

riddleme · Dec 20, 2009

May I ask why 12/20?

never heard of that light cycle being used?

aimnstu · Dec 20, 2009

riddleme said:
May I ask why 12/20?

never heard of that light cycle being used?

That's what i was thinking why?

IAm5toned · Dec 20, 2009

12 off WILL cause the plant to flower.... and 20 hours of darkness will cause a weaker strain to hermie. im not sure how that would work out for you....

llLOU · Dec 20, 2009

CavemanPoop said:
I have been looking for a timer that would allow a 12/20 light cycle and have had little success finding a brand of timer.

I know there have been older posts about this subject but i cant seem to find them now that I am looking.

Anyone with first hand experience using non standard light cycles that have advice would also be helpful.

Thanks in advance all

Get a Brinks model #44-1040, I think it is programable for up to 6 different light cycles, I think that will do it for you. :weed:

vh13 · Dec 20, 2009

Using a digital timer, do something like this:

Sun 00:00 on 20:00 off
Mon 08:00 on
Tue 04:00 off 16:00 on
etc...

Each day is going to have a different on/off time then the next, obviously there's only 24 hours in a day. Also, at 12/20 your times are going to shift every week, so you'll need different light cycles pre-programmed or you'll need to reset the on/off times accordingly every week. At 12/16 you can keep the same light cycle every week.

Be aware that you cannot do this with a mechanical timer which only allows for 24 hour cycles. Hence why you need a digital timer with different on/off times for each day of the week.

12/20

CavemanPoop

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Madg420

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CavemanPoop

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riddleme

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aimnstu

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IAm5toned

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llLOU

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vh13

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