It was a little too big for my screen so I had to trim a millimeter on each side to fit. Also, it was very difficult to put on and it took so many tries (the fact that it was too big and I had to stop and trim the edges didn't help) that I couldn't put it on without blisters. If I had a professional to install it it would certainly be worth it, but it wasn't worth the money or the hassle. Just manually turn off the blue light in your computer's display settings.
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