How does the Lumen output of the LED Grow Master Grow Light compare to other grow lights?
  •    Lumens and Lux are measurements of how bright a light source appears to the human eye.  Since the
    human eye is most sensitive to colors plants don't need, and least sensitive to colors plants prefer, they
    can't be used to accurately compare the plant growing capability of an LED plant light.  If a grow light
    manufacturer rates his grow light output in Lumens they are only telling you how bright it will appear to
    you and light your room, not how well it will grow your plants. The most accurate unit of measurement for
    comparing plant lighting is the microEinstein, which measures how many photons of light strike an area
    per second.  But, while this is a much better way to estimate a lamp's plant growing ability than Lumens
    or Lux, it is still very difficult to directly compare two different types of grow lights.  All grow lights except
    the LED Grow Master grow light emit large amounts of light plants don't use very efficiently, so including
    that light output in a light's plant growing measurement is misleading. (read more...)

What type of soil should I use for my plants?
  • It is always best to use a more porous planting medium when gardening with LED grow lights.  A loose
    soil that doesn't compact will allow more oxygen to reach the roots, increasing plant metabolism and
    growth.  A porous medium will also help avoid problems associated with over watering.

How warm should I keep my plant growing area?
  • The energy efficient line of led grow lights will not heat up your growing area like traditional grow lighting
    products.  In cooler weather you may need to compensate for this by raising the temperature of your
    growing area to between 70 degrees F to 80 degrees F if you wish to accelerate the rate of plant
    growth.  If you can, monitor the temperature of your plant's root zone as this can also affect the rate of
    plant growth.

Should I water my plants differently when using the LED Grow Master Gro-Bar?
  • Absolutely!  Plants grown under the LED Grow Master plant lighting systems use much less water than
    those grown under conventional MH or HPS (i.e. HOT!) grow lights, and so need to be watered less
    frequently.  Be very careful not to over water your plants, and check to see that the soil is drying out
    before watering them again.  The time between watering will vary with plant species.  Over watering will
    slow root development, stunt plant growth, and cause nutrient uptake issues.

How often and how much should I fertilize?
  • Your plants will need fewer nutrients when grown under led grow lights.  Start with a lower amount of
    nutrient, approximately 400-600 PPM, or around 1/2 of the amount recommended by the manufacturer.


Frequently Asked Questions
About the LGM LED Plant Light
NASA LED Experiment
Our LED plant light should not be measured
in Lumens or Lux.  These are "white light"
measurements for grow lights such as HPS,
MH, fluorescent, and incandescent lighting.  
When SolarOasis introduced led grow lights to
the grower in 2002, (SolarOasis holds the first  
patent for led grow lights) all measurements of
light energy were based on white light
products.  However, white light products
produce a lot more energy than plants can
use from 380nm (UV) to beyond 880nm (IR).  
Our led grow lights focus on the wavelengths
between 400nm (blue) to 700nm (red) known
as Photosynthetically active radiation.  
Toll Free in the US and Canada 1-866-414-7244              Fax  541-610-1973             International Inquiries to 1-541-504-6360            Email LED Grow Master Global, LLC at info@led-grow-master.com
NASA Experiment Wheat under LEDs