00:00Zero electric bill, the brilliant invention that brings real sunlight indoors.
00:05A Swedish company called Perans has developed a system that captures sunlight on your rooftop
00:09and delivers it deep inside your building through special fiber optic cables.
00:14And just like a sunflower, it automatically tracks the sun as it moves across the sky throughout the day.
00:19That means even rooms with no windows or even basements can now enjoy natural daylight.
00:25And here's the biggest advantage.
00:27It's real sunlight.
00:28Unlike LED lighting, it won't strain your eyes.
00:31It can even help your body produce vitamin D and keep your internal clock running on a natural rhythm.
00:36One thing to keep in mind though, when the sun goes down, the light goes with it.
00:41So you'll still need regular lighting once night falls.
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