Some infrared heaters put out visible light in the red spectrum. That's why you can see it. These are very popular and they will fuck up your grow. Little lights like on my oil filled electric radiator also can cause problems. Put black tape over them.
Shovelhandle Reviewed by Shovelhandle on . cold weather help! Growing in the garage the only source of heatis n the lights. Temps are expected to drop into the teens the next couple of. weeks. Garage temps drop to lower 40 now. I'm worried that it will get too cold. my question is how cold is too cold. I have both a veg side and a bloom side.. how do you protect your babies?? Rating: 5