
I was researching the effect of blue light on a computer screen and was surprised at how damaging it can be to use an unprotected screen for a long period of time. I work more than 40 hours a week with two 18x12 screens. I had terrible insomnia and nothing helped. After a week the insomnia stopped and I wasn't that tired anymore. I highly recommend this product, it's worth every penny. Super easy to install and arrived early. I think companies should support their recovery plans.