In an indoor growing situation the more light your plants get the more they yield.
Therefore it is essential that you use Reflective Sheeting.
Mylar is the most reflective material you can buy with over 95% of light been reflected back.
Mylar is a quality, extremely durable also features a white backing which prevents any light going through it.
This makes the Long Life Mylar suitable for constructing walls or partitions from. Typically, you will use Mylar on your walls and Black/White plastic to cover floors, tanks, pots etc.
Mylar is priced per 5 meter in length and is 1.3 meters wide.