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It's addressed near the bottom:

> An additional benefit became apparent after we started using Blank: it significantly lowers the energy consumption of the screen.

> All modern TVs have circuits that detect a blank signal and turn off LEDs to reduce the power required by the device. If you’ve ever felt heat coming off your big screen, Blank makes that go away.

> So besides improving your sleep, you’re also helping out our ever warming planet.



It's still more energy consumption compared to smartphone and if you don't have a modern TV it could even be you consume more energy with blank screen.




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