Protect Your Eyes
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I had something like this before and in all honesty it was more hassle than it was worth, screen not as clear.
I'm somewhat baffled by this reduce blue light to help get to sleep easier. I actually have plug in nite-lights that are Blue rather than white. I also have a 4W LED Blue lightbulb in my bedroom and I leave that on all night, I feel I get to sleep just fine and have to get up less in the night, go figure