On 02/19/2018 02:44 PM, songbird wrote:
Frank wrote:
...
Looking at internet I think it best to buy LED lights designed for
growing plants as their output is in the most useful part of the spectra
for plants. You would not like them in the house for normal use as they
would be a different color.

yes, and perhaps look into UV protection too that
would be needed. you don't want to mess up your eyes
or have skin troubles...


songbird


Hi Songbird,

Usually, pl;ants use red and blue for photosynthesis,
but not always. here is a fun article on ti:

What colors of light are used in land plant photosynthesis?
http://scienceline.ucsb.edu/getkey.php?key=2550

The color of light used for photosynthesis depends
on the pigment in the plant.For example, green plants'
with chlorophylls and carotenoids have a maximum
activity with violet-blue and red light. Basically,
whatever color the plant is, that is the color of
light that it is reflecting instead of absorbing
and using for photosynthesis. If you click on the
different links I have included, it will take you
to different wikipedia pages that provide additional
information.

So, basically, the color you see on the leaves is the
color it is NOT using.

:-)

-T