LEDs Change Thinking About the Light Bulb by ERIC A. TAUB


By ERIC A. TAUB

Able to be programmed and to change spectrum, LEDs are being seen as devices to change moods, help people sleep or stay awake, and help plants grow.

Published: February 6, 2014 at 12:00AM

from NYT Technology http://nyti.ms/1e3MXB0
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