NAVADEAL 2 Pack Silver Highly Reflective Mylar Films, 82x 47Inch, Metallized Foil Covering Sheet, Garden Greenhouse Farming, Increase Plant Growth Save Power, Reduce Uneven Heat Environment Safe

Very reflective, easy to install very lightweight will purchase again

Amazing Product, I am so glad I tried this out, 100% efficiency rate when used in your grow room. But the most significant thing is that my grow room is in my bedroom on 2x4ft. Metal shelves, so my room was super bright, I had to wear a mask to sleep. But the mylar sheets kept all of the light bouncing around inside, But the best part was it kept the light in & you can totally see through your grow. It became a 2 sided mirror. Highly durable, I used tape to attach it to my racks, but I want to use wires or twine that I have, Amazing Product, I ordered extras, worth 10x the money spent******

I bought these to protect my family's retinas from the eye-piercing lights I installed to over-winter my succulent collection. They work very well for eye-shading.As you move the material it tends to wrinkle and where it wrinkles you can see that some of the reflective material rubs off. This seems like a natural occurance. You can see the rubbed off areas where the new sheet was orginally folded in the first (brightest) picture.The sheets are very, VERY thin, but they have been durable, despite the ruboff. And they are inexpensive, so you can just replace the sheets when they get too worn.If you have plant lights keeping your plants alive but killing your eyeballs, you need these.

Needed some mylar to line a greenhouse to stop wasting light, since it's in my basement. My seedlings are all much happier and I even got some of my chili's to start fruiting in the greenhouse. Still have 4 sheets left. Not 100% light blocking, but reflective enough to allow my lights to no waste a bunch of energy lighting up my basement. Also was cheaper per sqft than the bigger rolls, though those might be better at blocking light.

So these are very light, thin sheets but they're quite durable. I fully expected them to tear while being a bit rough on them, but they held up. They are surprisingly tough considering how thin they are. Maybe that's because I wrongly expected them to be as fragile as thin aluminum foil.Speaking of which, these sheets are NOT like aluminum foil which is 100% opaque. These sheets reflect most light but they are transparent, I would estimate around 95% reflective and 5% transparent. You can see right through them, but you have to be looking at something bright, like the sky or day-lit scenery.

Not the highest quality but seems to be preforming ok. This type of product thinner product is never easy to work with unless you use proper technique when applying. Couple decades ago before everything was made oversees I fell like the quality and thickness was greater which made it easier to work with. But this is low cost and ok if you take some effort to apply it. However, I would not use in a large grow or anywhere you expect it to last to long. If you have a small window or closet garden to increase sun/light on a handful of plants maybe ok but I would not expect you would be able to line the ground outdoors as pictured wind and debris would destroy it immediately.I adhered it to some rigid panels for small area that does not get a full day of sun and it is holding up at least for 5 days

I got these to help reflect the heat from sunlight pouring in through some windows. It was easy to handle (be careful unfolding it because if you unfold it too forcefully it will tear,) lightweight and it does indeed help reflect some of the searing heat coming in the window. It still allows me to see out, although the view is a little unworldly, silvery and dim, rather like a special effect for a sci-fi movie. My windows are not subject to birds crashing into them; you'll want to make sure birds don't think they are seeing a throughway. Something to be mindful of since we share the planet with birds. Because these packages are so small and lightweight, they'd be nice to have in the car or in a backpack in case you must be out in harsh elements.

I used 2 of the films to create a grow box for my seedlings (lined the inside of a cardboard box with it using glue sticks and will cut a rectangle in the top of the box for my 36W LED (360 HPS equivalent light to shine through). I also glued wood strips to the outside of the box at the bottom to make it more sturdy. Also, I used 2 of the films to attach over the top of my 200W LED (2,000 HPS equivalent) light in my mylar tent, and let it drape down over the plants. I'm growing herb in a 32X32 tent and wanted to condense the light. This way the area is about 28X28 instead of 32X32

En general me gusta el producto, el indice de reflejo es altísimo, es prácticamente un espejo que es lo que necesitaba. Como punto negativo solo mencionar lo ya dicho en otras opiniones, el material es muy fino, tanto que es bastante difícil de manipular.

Einfach super. Habe ein deutlich besseres Wachstum der Pflanzen zu verzeichnen. Natürlich ist es ein Staubfänger und unter Staub nicht so wirksam. Dann geh ich einfach mit dem Swiffer drüber. Habe die Folie auf eine Kartonplatte geklebt, Pflazen daraufgestellt und unter die Pflanzenlampe. Endlich schöne Pflanzen, auch im Winter

Sottili ma ottimi

Does a great job of increasing the yield of your plants herbs and spices

This mylar film feels like a warm electrical like computer or something like radiating like a battery or something, I had no trouble installing it to a great giantX room divider for my herb plants ☘️ 🌿 and it has this really nice feel too!!! It came to me in Australia all the way from America in under a week like folded in a box smaller then a DVD case!