ORCA Grow Film is made from threads of a high density specialized reflective plastic which are bonded together, creating a unique surface topography. The resulting geometry of the microfibers and the submicron pores within the microfiber create a highly reflective and diffuse surface. The same principle is found in snowflakes, where normally transparent water is transformed into reflective bright white snow through the unique geometry of ice crystal formation. Diffuse reflection is important to hydroponic growers because it eliminates hot spots and creates the even, efficient distribution of light that plants need.