Offsetting Temperature Dips with Lighting! (Complicated Kinda Indoor)

Hey Guys!

I'm going to be setting up inside of a closet that is attached to my house and I have a pretty big question! First off to put things in perspective I live in Southern California! I'm going to be growing in a closet that is attached to my house but still "Technically Outside". As such I'm going to have no central air there. My big question is can I use my lighting in order to provide heat to offset the temperature during the winter. Also, is there possibly such a thing as *GASP* too many lumens? Otherwise I'm thinking about throwing a 600w in a 3'x3' space and setting the 18x6 during veg and letting my babies soak up the rays while the lights offset the temperature dips at night. Let me know what you think!

That 600w should produce a pretty decent amount of heat to keep them warm, if not you could always get a small heater.

Plants have a saturation point when it comes to light so it gets to a point where there's excess light not being absorbed(basically being wasted) but they can acclimatize to however much light they're getting and adjust that saturation point. Before the plant realizes its at the saturation point, however, light bleaching can occur which isn't good although it looks pretty damn cool. So to a certain extent you can have too many lumens.

Also you may want to throw a lock on that closet since you mentioned that it's outside, always good to have some security for the babies.

Yeah... When the lights on it will provide heat but when the plants are sleeping they are gonna freeze.

But.... What if the plants sleep during the day and are awake at night?

Basically you just need to test temps with lights on and with lights off experimenting with different times of the day or night. I would suggest getting a small space heater on a timer or something if it gets much under 60 degrees with lights off