Intensity Discharge (HID) Lights
These are the same powerful
lights used by professional greenhouse growers.
HID lights are highly energy efficient. You can
grow any plant, anywhere, anytime you choose.
The “high intensity” light energy is effective
much farther than fluorescent:
250 watt/3 ft., 400 watt/5 ft., 600 watt/6 ft.
The 400 watt is recommended for most hobby greenhouse
Pressures Sodium (HPS)
light has extra output in the yellow, orange
and red spectrum, which increases flower quality
and size. It is the best choice for use in a
full light spectrum is the advantage of MH.
It is the most effective light for use indoors
where there is limited sunlight.
These lights are recommended
for starting seedlings and cuttings. They are
also popular for growing herbs and other low-light
plants like African violets. Fluorescent lights
are “low intensity” and need to be within 6″
to 8″ of the plants to be effective.