PROBLEM on 12/12 flip please help!!

[BongRipper4200]

OK so i got a week of veg on 18/6 from seed they r 25 days old and i am look to switch them now my whole problem is when i do the switch do i do it after there dark period such as 18 hours on then 12 off then 12 on so on and so forth or do i do 18 on then 12 on then 12 off then 12 on so on and so forth.... or any other way???

 

[LeafGnosis]

Hi there, this is what I like to do.. which comes from advice from here naturally, but the day I want to have the girls go 12/12 then that day I reduce the time on the timer and they go to bed 6 hours early the first night.. then 12/12 from there! good luck!

 

[KingsKush]

Set your timer so that at the end of your 18hr lights on cycle they go into darkness for 12 then the next light cycle will be 12 on...

 

[navyfighter04]

Honestly it doesnt really matter. You are just starting flowering, you are not in the middle of it. As soon as your lights turn on, change your timer to shut off in 12 hours. Easiest way.....

 

[bmeat]

it doesnt matter..just make sure the plants get 90%+ of darkness during the dark hours so they can secreate the necessary hormones.

 

[username1234567]

it doesnt matter..just make sure the plants get 90%+ of darkness during the dark hours so they can secreate the necessary hormones.

90%+ of darkness, what you on about ?

 

[bmeat]

yeah..the more darkness the better, but in the wild the moon is always reflecting the light off the sun onto the plants

 

[Brushog]

Just flip it... You will be ok. There starting the next cycle and will get used to it

 

[BongRipper4200]

Thanks so much im going to start my 12 dark when it cycles through the end of 18 on

 

[LeafGnosis]

yeah..the more darkness the better, but in the wild the moon is always reflecting the light off the sun onto the plants

Your proportions are way off due to improper perspective here.. a full moon will cast anywhere from 0.27 - 1.0 lux, that is not a lot... so 90% of 130,000 lux (brightest direct sunlight) = 117,000 lux leaving 13,000 lux... you will hermi for sure! You know when you are driving into 'city lights' at night? 3+ lux right there.. so kind of gives you better perspective and there for throws your 'but in the wild the moon.....' argument out the window!

 

[LeafGnosis]

Thanks so much im going to start my 12 dark when it cycles through the end of 18 on

if you can see your hand a couple of inches away from your eyes, then there is too much light in the room! best way to tell.

 

[bmeat]

Your proportions are way off due to improper perspective here.. a full moon will cast anywhere from 0.27 - 1.0 lux, that is not a lot... so 90% of 130,000 lux (brightest direct sunlight) = 117,000 lux leaving 13,000 lux... you will hermi for sure! You know when you are driving into 'city lights' at night? 3+ lux right there.. so kind of gives you better perspective and there for throws your 'but in the wild the moon.....' argument out the window!

your proportions are way off, becuase the light that escapes into the room is usually from incandesant bulbs, which have even lower lumens than hids or fluors, let alone the god damn sun.

 

[Fruitbat]

Bmeat - Stop yammering on about things you clearly don't know jack about. Your "advice" is horrible. It's shockingly bad.

To the OP, just flip to 12/12 you'll be fine. No need to over think it. You'll do just fine.

Good luck on your grow!

 

[Adjorr]

moon light does not produce the radiation needed for photosyntesis. artificial light does. do not let light get into your plants durign the dark cycle, even a small amount of light will make them think its still evening or early morning not night time. if you do need to check your plants int he dark use a green only led head lamp (u can buy these places) as it produces light only in spectrums not used for photosynthesis

 

[bmeat]

yeah..dont bring a lamp in there..but artifical aint too bad.

the worst are sun light and candle light..but luckily candle light is only 1 lumen..thats how we measure lumen.

idk..i guess the safe bet would to be light sealed..but my closet aint

 

[mr2shim]

yeah..dont bring a lamp in there..but artifical aint too bad.

Do you realize you just contradicted yourself?

candle light is only 1 lumen..thats how we measure lumen.

http://www.elightspot.com/lumensvcandles.aspx

 

[Fruitbat]

No he doesn't realize this because he has the attention span of a gnat.

The question was about flipping to 12/12 and not about light leaks.

Wow. Just wow. I give up.

 

[navyfighter04]

The op has already said hes switching his light from 18 to 12 when the lights kick on. Lets not hi jack another thread cause we all dont agree with Bmeat.....Yea, navyfighter is saying this. But this is how it starts and ruins peoples threads. I get pissed when my threads get hijacked from him too. So i try not to hijack others anymore...

 

[Indoor Sun King]

I always heard it's best to keep the same "lights on" time and reduce the "lights off" time...otherwords if you were 6am to midnight....switch to 6am to 6pm

 

[Sand4x105]

I always heard it's best to keep the same "lights on" time and reduce the "lights off" time...otherwords if you were 6am to midnight....switch to 6am to 6pm

This is how I do it also, and what I have 'heard'... from where, I have no F'n idea....