Autoflower 24hrs of light?

Hi @miker as long as the range is up to 10 ° C it is not critical for cannabis. the ideal for cannabis is between 18c-28c. if the variation is greater than 10 degrees and you don't want to make it grow at 24H, I personally don't like it, I prefer 18/6. you can put a small heater (15 $) and a temperature control sensor, sell on aliexpress website for 10 $. good luck mate 👍

Have the same problem here, therefore i have installed an heater in my tent and the temperature-sensor of the heater holds the night-temperatures at constantly 15 degrees. If the lights are on and the temp. goes up, the heater switches off. I am very carefully that nothing can burn with the heater in the tent - i know it‘s a little bit dangerous. Therefore I have also installed an automatic fire-distinguisher obove the tent, just to be sure that nothing can burn. In my opinion it is better, to give the plant a few hours of darkness. I have 18/6 with my automatic plants.

One night won't hurt. Just make sure it doesn't touch freezing. Play around with your light cycle to get the best temp. I have a 250 watt bulb but have to have the cycle on 4/1 to keep them at the ideal temp. The tent is also in a warm attic so that also contributes. Good luck

It's only one day it will be fine dont worry about it

I usually run my autos in an 18-6 or 20-4 setup. I think understanding the conditions around your grow would help some. What is the temp range at night vs during the day? What is your humidity? Happy Growing and setup is looking nice!