If you want to grow a plant in an area which has no sunlight, you need special, expensive lamps. The bulbs are obviously what make the units so expensive. I am curious to know specifically what makes these bulbs so very different from normal lightbulbs that you would use in a desk lamp, or the overhead light in the living room.
It's true about the full spectrum light. It simulates the sun with a host of things not visible to the human eye.
The link below will add insight for a curious mind.
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This page is devoted to providing the general public, educators and media with tools to further their understanding of lightsources, how they work and how experiments are done in these facilities.
Also the grow light can be put into any type of socket, infact just a regular lamp socket with a cord will work.
I use one all the time for my house plants.
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