“Light intensity has as much to do
with the burning and yellowing of
plants as the heat of a bulb.”
An example of lighting placed too close to plants.
So, before installing your grow lights, there are two
things to consider: the eventual temperature and the
light intensity inside the grow tent. Concerning the temperature, the heat filter controls the environment in the
room by pulling heat out of the room. This results in an
optimal growing environment for plants. In these conditions, plants grow to be big, tall and strong, provided
they are getting the right amount of nutrients, water
and all of the other goodies they demand. This optimal environment also prevents the growth of parasitic
organisms and pests such as mildew and spider mites.
Again, the light intensity also matters. When the bulb
is lowered, it will actually “burn” plants that are right
below it. Again, this is not because of the heat, which
is being removed by the filter, but because of the light
intensity the bulb is giving off.
In terms of T5s and induction lighting, the light
travels along a horizontal distance, and is a softer
light, so the risk of damaging plants if these lights are
too low isn’t as high as with HID lighting, but while
they don’t immediately get hot, temperatures and
intensities will build up over time, so keep an eye on
things and adjust lights accordingly.
In terms of LED lighting, LEDs are different in the
fact they produce even less heat and create a specific
light spectrum. They emit a strong intensity of light,
which can still irritate plants if they get too clo