Not a huge deal, but it definitely helps catch some stray lumens.Thinking of just throwing my 3 plants in my basement with no tent, just in the corner of the basement. How important is not having mylar or some type of reflection ???
Not a huge deal, but it definitely helps catch some stray lumens.
http://www.amazon.com/Hydroponics-Mylar-Reflective-Material-White/dp/B004P4322U/ref=sr_1_6?ie=UTF8&qid=1432074180&sr=8-6&keywords=mylar roll
Some plain old flat white paint works great, too.