LED Grow Light Specifications


Indoor plant growth was revolutionized by the development of grow lights. Four varieties are available--incandescent, fluorescent, high-intensity discharge and LED. LED grow lights have become the most common due to their efficiency.

Emission Spectrum

LED grow lights are successful because they emit only the light that the plant needs to grow. During the initial vegetative stage, plants will grow fastest under blue light. During the flowering stage, plant growth is encouraged by red light. LED grow lights provide a spectrum of blue and red light to maximize photosynthetic activity.


LED grow lights use less power and produce less heat than other types of grow lights. They are efficient because they produce only the light spectrum plants need to grow. Since LED grow lights produce less heat they also cause the plants to transpire less, and therefore extend the time between required watering.


LED grow lights allow the user to maximize indoor growing space. Since LED grow lights emit very little heat, hearty plants like tomatoes can be grown next more delicate plants like African violet. Plants of all ages can also be grown in the same environment since LED grow lights provide the appropriate spectrum for all levels of growth.


  • "Gardening Indoors with Soil and Hydroponics"; George F. Van Patten; 2007
  • "Indoor Gardening with the Aid of Artificial Light"; John C. Dale; 2005
Keywords: LED grow lights, grow light efficiency, indoor plant growing

About this Author

Karen Malzeke-McDonald is both an illustrator and writer in the children's publishing market. She has an A.A.S in art and advertising from The Art Institute of Dallas, and a B.A. in art history and studio art with a minor in English literature from Hollins College. Malzeke-McDonald has enjoyed many career challenges, from designing a nationally licensed character to creating and marketing new businesses.

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