they do not see light (unless you let it leak out), but they see heat. it's only sercemstancial(not shure how to spell that)evdence, and would not be used unless they knew or had a good idea what was going on.
dylan Reviewed by dylan on . Thermal Image resistance??? Can anyone tell me any good methods of thermal Image resistance? I heard something about lining your grow room with rockwool and mylar? Is this a load of bullshit or does it work?? Rating: 5