Volcanics Blackout Window Film with Installation Tools, Privacy Frosted Sun Blocking Black Window Cover Room Darkening Window Tint for Home Static Cling 100% Light Blocking 17.5 x 78.7 Inches

The product did not work as expected there was no mirror effect on the Outside and you could easily see through the product, applied both ways still rubbish. Waste of Money. Not sure were the good reviews come from but its not for this product in my opinion.

Great stuff - got the blackout version and it blocks the light 100% wherever you put it. Love it. I got a new monitor a few months back, and have a high half-moon shaped window directly behind me in my front door, which faces west, so the sun was always glaring in on my computer screen every day for the few hours before sunset (except on super cloudy or rainy days). I have extremely light sensitive eyes, and even though my monitor has a glare-free coating, the glare has been brutal and headache inducing. (Plus, the anti-glare coating on modern monitors is not all that fabulous honestly - I miss the truly matte monitors of old that didn't cost multiple thousands of dollars like they do now.) Since this stuff was a SIGNIFICANTLY cheaper solution than getting a crazy expensive new monitor, I ran with it and am so glad I did. It is pure black almost all the time. I do have daylight LED light bulbs for nighttime, and that's when the rainbows show up beautifully on the inside. I don't know how well the rainbow/holo coating would work with regular incandescent or fluorescent lighting but it definitely shows up with your normal daylight LED light bulbs on in the evening. Mine are 4500 temperature range, maybe 5000? They aren't the soft 2700 or 3000 warmer temp ones - those ones drive me batty because my eyes see everything as "dingy" with them - probably due to my eye issues. Anyway so yeah these are fabulous but the holo/rainbow effect requires good indoor lighting to see it. Otherwise, it's just solid black but it absolutely does it's job of blocking out 100% of the light!! So simple. So effective.

Guter Blick Schutz, wichtig nur wenns dunkel ist Vorhänge oder Rollläden runter, denn funktioniert nur bei hellem außenlicht Verhältnis

Very bad item. Installed it and in 2 weeks its already peeling off.

Die Spiegelfolie kam schon zermatzt und zerkratzt. Wir mussten viel wegschneiden so ging es sich dann auch nicht mehr für das zweite Fenster aus. Sicht ist nicht dunkler sondern auch verzerrt. Nicht zu empfehlen

Used on garage windows.....makes a huge difference...still let's light in just not as bright and gives you privacy