Batwings are for
Bats!, not
Plants
Look at the grow
"lights" that are being
cobbled together and sold here. Most
of them have open ends. Light flies
out the ends of these “batwings”
and hits your walls. What a waste!
Do you want to light up your room or
do you need to feed your plants with
light?
Here’s the
critical and
costly error
that
others make: They act like light
only comes off the side of a bulb at
nearly 90 degree angles. Light
actually comes off of each portion
of a light bulb in all possible
directions. The truth is our
competitors have really blown it.
They need to think in 3 dimensions.
The electric arc inside of an HPS or
Metal Halide lamp emits light in all
possible directions as shown in the
picture That’s why we’ve built our
large, multi-faceted hoods to fully
enclose the bulb. It’s what required
to fully capture and redirect light
down on your plants. Low end
fixtures are made by just bending
corrugated aluminum in a hump. Light
will fly right out the open ends
over the tops of the plants. Or the
light ricochets off of a batwing
reflector and out the open ends and
onto your walls. What
a waste! Are you trying to
light up your plants or the wall? If
you want to grow plants, use this
reflectors, not crummy open ended
ones.
Shoeboxs are for Shoes!
Other common grow
lights have a hood, but not a large
complete multi-sided reflector like
ours has. You can’t throw a light
bulb in a little box and hope that
much light will get out. If you put
a reflector with open ends in a the
box, light gets trapped in internal
reflections, bouncing back and forth
between the ends of the box or the
ends and the reflector or the
reflector with it's self. The
optical efficiency of these "shoe
box" lights is so poor that hardly
anyone in the lighting industry
publishes the numbers. Typically
only 40 to 60% of the light
generated by the arc gets out of the
fixture. You are simply not getting
the light you are paying for. That's
why we designed our reflectors with
flared end walls. Light strikes the
end walls and quickly reflects out
without being trapped.
When to use a
600 watt system:
The problem with
400 watt HPS grow lights is that
it’s difficult to achieve the
recommended 2000 to 3000+
footcandles to get robust growth of
subtropical plants. It takes a lot
of light to compete with the Sun.
That’s where the 600 watt HPS comes
in. This horticultural grade 600
watt bulb combined with our super
output high efficiency reflector can
really pound out the light. So you
can get more production out of a
smaller surface area.
Higher wattage HPS
bulbs are more energy efficient too.
A 600 watt bulb makes 80% more light
than a 400 watt HPS bulb, but it’s
only using 50% more energy to do it.
Growth rates are roughly
proportional to light level. (Twice
the light gives about Twice the
growth)
So this means you
can get higher yield with fewer
kilowatt hours.
Six hundred watt
HPS systems have practically the
same energy efficiency (lumens of
light per watt consumed) as the 1000
watt HPS systems. We currently offer
this 600 watt system with the same
giant full size hood as our famous
1000 watt Super Output system. So
the fixture costs are close to the
same. So, if given a choice I‘d buy
a 1000 watt system instead,
particularly if you are using it in
a green house. The best applications
for 600 watt units are single
fixture set ups where you desire
more light than what a 400 watt
generates or if you have long
rectangular grow areas. In a
rectangular space, two 600 watt
fixtures can give you more even
illumination than a single 1000 watt
fixture.
You wouldn’t
buy used spark plugs, would you?….
So why buy a
discarded
light
fixture that someone
“refurbished”
into a
grow
light?
Light fixtures
don’t last forever. Eventually the
ballasts blow out. That’s why we use
all new ballasts, lamps, and
electricals of the highest quality.
Yet some guys, looking for the quick
buck, buy up discarded
industriallight fixtures and convert
them into grow lights-- calling them
“refurbished”.
In general, you
are looking for trouble if you buy a
grow light made from discarded HPS
fixture. The high voltage pulsing
created when starting HPS lamps is
very hard on the ballasts,
especially since industrial lights
are most often used in hot high
ceilings.
Consider where
these discarded light fixtures come
from. As ballasts fail, its reaches
a point where it’s cheaper to buy
all new light fixtures than fix the
old. As many customers complain,
it’s often cheaper to buy a whole
new light fixture than buy a
replacement ballast. It is simply
not cost effective to hire high
priced electrical contractors or
rent lifts to maintain fixtures.
Savvy building
owners often evade waste disposal
regulations by dumping their old
light fixtures for cheap rather than
recycle them. So there is a ready
supply of nearly burned out light
fixtures available for you to buy as
“refurbished” grow lights.
Reused HPS
fixtures are especially troublesome
because they are so old. HPS was a
very common industrial light source
about 15 years ago. It’s very
efficient but makes an orange light.
Eventually people have recognized
that you just can’t see as good and
concentrate as well under orange
light as you can under white light.
And very high energy efficiency
white light sources were developed.
So around these parts, factories
stopped installing these lights
about 10 years ago. To me it seems
likely that if you buy a refurbished
(reused) HPS grow light, you are
likely getting something that has
had at least a decade of hard
industrial use.