I am looking into starting to grow in the shed in my garden in an old kitchen cabinet, i have been looking at a 120w MH light to start with. I have been told that polystyrene foam is a better option than foil to line the grow space. i will be using two wall fans in the area, one to extract air from the area and and another to blow air into area to keep the air clean. electric temp/humidity meter. havent decided on a control for humidity yet. any advice or criticism to the setup so far could people please let me know as i want a decent setup and as this is my first time i am still finding out the better ways to grow. i am also unsure about heat from the lamp and as it is nearly winter i am concerned about the temperature being too low. any information would be very helpful thank you and 4:20 to you all