Grow lights

http://www.bhg.com/gardening/houseplants/care/choosing-plant-grow-lights/
http://www.horticulturesource.com/faq.php#why
http://www.survivalfoodgear.com/2013/08/22/raising-food-indoors-one-steps-self-sufficiency/
http://forums.gardenweb.com/forums/load/hydro/msg0216465428747.html

-Yvettte