Do Sunlight Bulbs Really Provide Natural Light Benefits?

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Skhandelwal
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Hey guys, I have been hearing about those bulbs that give sunlight benefits. However, there are so many of them that it is hard to know which one is a good one. Surprisingly, most of them are fluorescent so I don't suppose that's good for our health. The halogen ones are rare. And there are even types that doesn't fake the light, it gives the real light during daytime only as the device that stores from the sun is located at the roof and the bulb is directing it in the room in a controlled manner.
 
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There is something like this:
Light is reflected in through fiber optic cabling.
http://www.treehugger.com/files/2005/06/sunlight_direct.php
and http://www.treehugger.com/files/2005/04/sunlight_in_a_c_1.php
and http://www.sunlight-direct.com/products.html

I'll take anything over florescent bulbs. That stuff isn't cheap though...
 
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Isn't fluorascent bad for us b/c of flickering?