i just made a shelter for my outdoor plants(balcony), and they work for protect the babies from cold and humidity and to give the 12 hours of complete darkness, this way i have plants in late flower with plants in early flowering at same time. but the shelter is indoor and they get sun outdoor(balcony). i just put the shelter in front of my window with the door open for the air to get in and for the smell go out. i have to do this for security reasons(some gipsys scum, want to rip off my plants) before i just leave the plants outdoor in my balcony and once i have two plants with rotten bud due to rain period and i have to cut off many buds, you have to be close eye to rot bud, especially in fat compact buds and top colas. good luck for you.