# Auto flower and light cycle

**URL:** <https://ilgmforum.com/t/auto-flower-and-light-cycle/53285>\
**Category:** Autoflowers\
**Created:** [September 6, 2020, 5:59am UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285 "2020-09-06T05:59:11Z")\
**Posts on this page:** 19\
**Page:** 2

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**Author:** ![PP3121](https://avatars.discourse-cdn.com/v4/letter/p/a9a28c/32.png) [@PP3121](https://ilgmforum.com/u/PP3121)\
**Post date:** [September 18, 2020, 9:13pm UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/21 "2020-09-18T21:13:11Z")

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Thank you for that. I will need to do more reading!

The learning never ends! 🤪

I like that! 🤓

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**Author:** ![MajorMarvy](https://avatars.discourse-cdn.com/v4/letter/m/b5ac83/32.png) [@MajorMarvy](https://ilgmforum.com/u/MajorMarvy)\
**Post date:** [September 19, 2020, 7:15pm UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/22 "2020-09-19T19:15:32Z")

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Hey all, as usual great info on here.

So I thought I had auto flowers, as they started flowering outside when light was still 13-14 hours per day (late august in NY State). I brought them inside and turned on the lights 18/6. After much thought and gazing at the plants, I think maybe they aren’t autos after all and the long light cycle has started turning them back to veg. And the flowers themselves don’t really seem to be growing that much. So I just this morning switched the lights to 12/12, thinking I have to force them back into flower. This sound right to youse experts?

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**Author:** ![Covertgrower](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/covertgrower/32/423081_2.png) [@Covertgrower](https://ilgmforum.com/u/Covertgrower)\
**Post date:** [September 19, 2020, 10:48pm UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/23 "2020-09-19T22:48:31Z")

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Beginning to see a lot of these. Auto flowers that got the recessive gene. They don’t flower until 12/12 like you observed.

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**Author:** ![Franksandbeans](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/franksandbeans/32/384544_2.png) [@Franksandbeans](https://ilgmforum.com/u/Franksandbeans)\
**Post date:** [September 20, 2020, 7:27am UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/24 "2020-09-20T07:27:16Z")

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I have a few ggAuto all planted at the same time. Some on 24 and some 18/6. The ones on 24 7 have clearly started flowering much faster and aggressive the those on 18/6. I am going to try this several times to see if hours on make a difference

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**Author:** ![Franksandbeans](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/franksandbeans/32/384544_2.png) [@Franksandbeans](https://ilgmforum.com/u/Franksandbeans)\
**Post date:** [September 20, 2020, 7:28am UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/25 "2020-09-20T07:28:36Z")

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All on the same wattage light

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**Author:** ![Clevergrower200](https://avatars.discourse-cdn.com/v4/letter/c/c5a1d2/32.png) [@Clevergrower200](https://ilgmforum.com/u/Clevergrower200)\
**Post date:** [October 31, 2021, 1:32am UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/26 "2021-10-31T01:32:47Z")

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I know this is old post but any definitive answers on 24/7 flowering faster?

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**Author:** ![GreenSnek](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/greensnek/32/366307_2.png) [@GreenSnek](https://ilgmforum.com/u/GreenSnek)\
**Post date:** [October 31, 2021, 1:55am UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/27 "2021-10-31T01:55:41Z")

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Of course some people think that autos are on a timer like the plant has a clock ticking down , but it’s actually based on size and maturity of the plant, if you screw up and stunt them at 2-4 inches tall they’ll usually veg longer to recover ( though I’ve seen some people who stunt them for SO long they flower anyways)

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**Author:** ![Clevergrower200](https://avatars.discourse-cdn.com/v4/letter/c/c5a1d2/32.png) [@Clevergrower200](https://ilgmforum.com/u/Clevergrower200)\
**Post date:** [October 31, 2021, 2:04am UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/28 "2021-10-31T02:04:52Z")

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Just been reading up on a “lantern” cycle…  
12 on  
1off  
5.5 on  
5.5 off

Interesting theory as well…

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**Author:** ![GreenSnek](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/greensnek/32/366307_2.png) [@GreenSnek](https://ilgmforum.com/u/GreenSnek)\
**Post date:** [October 31, 2021, 2:11am UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/29 "2021-10-31T02:11:32Z")

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Someone around here does 6/2 schedule I considered doing a 6:40/1:20 to mimic my 20 hour schedule but the theory is that with mini breaks they have more explosive growth

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**Author:** ![Clevergrower200](https://avatars.discourse-cdn.com/v4/letter/c/c5a1d2/32.png) [@Clevergrower200](https://ilgmforum.com/u/Clevergrower200)\
**Post date:** [October 31, 2021, 2:12am UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/30 "2021-10-31T02:12:32Z")

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Read on that a bit as well… think I see some experiments in my future

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**Author:** ![GreenSnek](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/greensnek/32/366307_2.png) [@GreenSnek](https://ilgmforum.com/u/GreenSnek)\
**Post date:** [October 31, 2021, 3:07am UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/31 "2021-10-31T03:07:10Z")

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I wouldn’t just get lucky and you’ll get a pheno like this 2x2x3.5 banana blaze auto , I’m easily gonna get at least 6 Oz from her

 ![20211028_081836](https://global.discourse-cdn.com/growingmarijuana/original/4X/4/a/6/4a6aa0e56eeb534c9c94e1473a311787c64f6bbb.jpeg)

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**Author:** ![Clevergrower200](https://avatars.discourse-cdn.com/v4/letter/c/c5a1d2/32.png) [@Clevergrower200](https://ilgmforum.com/u/Clevergrower200)\
**Post date:** [October 31, 2021, 3:08am UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/32 "2021-10-31T03:08:18Z")

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Nice work

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<div class="post-metadata">

**Author:** ![GreenSnek](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/greensnek/32/366307_2.png) [@GreenSnek](https://ilgmforum.com/u/GreenSnek)\
**Post date:** [October 31, 2021, 3:08am UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/33 "2021-10-31T03:08:55Z")

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Ohh whoops accidentally posted on the wrong post (fat fingered it lol) oh well I’ll leave it, it actually kinda fits lol

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**Author:** ![spudeater65](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/spudeater65/32/607101_2.png) [@spudeater65](https://ilgmforum.com/u/spudeater65)\
**Post date:** [November 1, 2021, 8:37pm UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/34 "2021-11-01T20:37:44Z")

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Love your tagname @Franksandbeans “There’s Something about Mary” With my Auto’s I have tried 20/4 19/5 18/6 I have now settled on 13/11 and they seem to like this the best Temp is 77-79 and RH is 45-50% and it is good to see new folks joining up more info welcome to the jungle Happy Growing!

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**Author:** ![spudeater65](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/spudeater65/32/607101_2.png) [@spudeater65](https://ilgmforum.com/u/spudeater65)\
**Post date:** [November 1, 2021, 8:42pm UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/35 "2021-11-01T20:42:06Z")

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I did this for a month they didn’t like it at all. Had many problems with growth and deficients burnt leaves growth of leaves not flowers ,so I backed the hours down they are better

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**Author:** ![Kingkupa](https://avatars.discourse-cdn.com/v4/letter/k/9e8a1a/32.png) [@Kingkupa](https://ilgmforum.com/u/Kingkupa)\
**Post date:** [November 1, 2021, 8:49pm UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/36 "2021-11-01T20:49:49Z")

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Most important thing with what ever light cycle you use , You must get your DLI in ever day, 20/4 18/6 please download photone app Get ur DLI dialed in easy way to get your light in right place

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**Author:** ![spudeater65](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/spudeater65/32/607101_2.png) [@spudeater65](https://ilgmforum.com/u/spudeater65)\
**Post date:** [November 1, 2021, 9:02pm UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/37 "2021-11-01T21:02:45Z")

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I didn’t have that one I’ll load it and try it It different from the one I use now Thanks

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**Author:** ![Jayjay504](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/jayjay504/32/1112014_2.png) [@Jayjay504](https://ilgmforum.com/u/Jayjay504)\
**Post date:** [February 12, 2025, 3:49pm UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/38 "2025-02-12T15:49:18Z")

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@Nicky are you saying it is better to measure DLI instead of ppfd? Are you saying that should be the only measure I take is the DLI?

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**Author:** ![MidwestGuy](https://sea2.discourse-cdn.com/growingmarijuana/user_avatar/ilgmforum.com/midwestguy/32/914277_2.png) [@MidwestGuy](https://ilgmforum.com/u/MidwestGuy)\
**Post date:** [February 12, 2025, 3:57pm UTC](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285/39 "2025-02-12T15:57:24Z")

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Nicky hasn’t been around for 6 months.

DLI is a measure of PPFD per unit time. DLI is PPFD x (time of light exposure)/10.76. It doesn’t matter which you use so long as you are conscious of the difference.

For instance: the DLI of an 18 hour light cycle will be 50% higher that the DLI of a 12 hour light cycle given an equivalent PPFD.

[Previous page](https://ilgmforum.com/t/auto-flower-and-light-cycle/53285.md?page=1)
