This Heisenberg grow tent in the space supplying variation of 120x120x200 is ideal to light and vent a small groupof already grown mother plant, or for the cultivation of a manageable amount of freshly pricked seedlings.
The multilayered cloth is 100% lightproof and consists on the outside of 210D Polyester-Canvas stuff, on the inside of high reflecting white surface.
The zip fastener are lightproof, too, of course.
In the "WHITE" version of the growbox, the inside is made of white, highly reflective PE, which can reflect 98% of the light (PAR) onto the plants. The effect is higher yields.
As the "Grow Pope" Jorge Cervantes describes in his book "Marijuana drinnen" (Marijuana inside), a white inner lining of the growbox reflects about 20% more light on the plants than a silver one. This increases productivity considerably.
This is supported by numerous comparative tests by the author Mr. Jose, who is also an expert in indoor cultivation.
Not only are the reflective properties of white coating significantly better, but the heat inside the tents also accumulates more slowly than with silver coating. This means that the ventilation can be operated less intensively and with less effort.