I need some help please !!

I'm trying to find out where I can get a big roll of reflective plastic. It comes behind fluorescent tubes in the 2' or 4' fixtures. Any ideas ? Or let me know what its called ? Please and thanks

You mean Panda Film? ---> http://www.growwurks.com/black-and-white-panda-film-10-x-10-sheet.aspx

I have panda-poly in my rooms and am happy with it but mylar is also an option.

HTG Mylar Roll

Go with Mylar....Better but harder to handle ....

Why's it hard to handle ? Will it crinkle like foil ?

Mylar is better if it is hammered but if it is not it can cause burn spots as light dispersion is magnified. Panda film is cheaper and only a few % less relfective than mylar. I beleive Mylar is 97-98% Light reflective value while Panda film is only 93-95% LRV.

Panda Film is cheaper and easier to build with. Mylar does crinkle and generally is harder to work with.

Best of Luck

https://www.rollitup.org/grow-journals/384835-swiftgrow-journal.html