A couple of lumens difference in reflectivity do not justify the expense of mylar(s). You aren't talking about a 5 to 10% performance enhancement overall, it's 5% of the reflected light within a 3 foot arc under the light. (400w HPS) Perhaps a 1% (guestimate) difference overall. But bringing the Mylar 'walls' closer to the plants (and lights) can restrict airflow and trap heat. I'd grow in the middle of my growroom (not using walls at all) before adding an unnecessary expense that bends, folds, cracks, scratches, collects water stains, and has to be replaced on occation...to still be of minimal benefit.

IR: being an insulator, does Luminix retain heat?


Merry Christmas, everyone :thumbsup:
Rusty Trichome Reviewed by Rusty Trichome on . Stupid quick Paint/Mylar question So I just read that aluminum foil is shit for reflecting any kind of light, which I had heard before it's ok if u use the dull side, but that's beside my question. I just read that flat white paint works better, and doesnt wear out like Mylar may, so does any kind of flat white paint work?? Like even just spray paint?? Thanks for any input in advance... Rating: 5