Flipping light cycle due to heat during the day?

**NZ_** · 20-10-20, 01:15 AM

Hi all,

I am on 12/12 start of week 7.

It is coming into Summer where I live and my room temps during the day are hitting around 29-30 celcius and my plants are getting smoked.

I have strong airflow but the air coming into the room is already at like 20 celcius.

How much damage would it do if I flipped the cycle from what it is currently On: 08:30am, off 20:30pm to off 08:30am and on at 20:30pm?

If it won't cause too much havoc, how would I flip it? Extend the light or extend the dark?

I'm also mindful that I'm struggling to control the humidity during the day as well - the air coming in is at 60% and my dehumidifier can't keep up before the room as fresh air again.

I have 200mm ducting with a fan sucking exterior air in and 200mm ducting and a carbon filter + fan extracting the air out. I have my room fans blowing air in the general direction of the carbon filter to try and push the hot air that way as well.

**GEORGE** · 20-10-20, 09:58 AM

None, go ahead and flip.

**Elias** · 20-10-20, 11:00 AM

I would extend the dark period not the light...

**Slazenger** · 20-10-20, 11:49 AM

Originally Posted by Elias

I would extend the dark period not the light...

I've been in your shoes. Do THIS !!!!!!!!!!!!!!

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**SyRaX** · 20-10-20, 12:34 PM

I would extend the dark period and then make sure your temps will be okay on the new 12/12 schedule. I wouldn’t do it more than once mind. You’ll be stressing the plants for sure.