Blackstar 500W UV LED Grow Light Cree 3 watt
This is the 9th upgrade to the bestselling LED in the business. The
Blackstar 500 is the 2nd best selling LED Grow Light IN THE WORLD! (Only
outsold by the 240 Blackstar).
The BLACKSTAR 500 uses all 3 watt chips, delivering the most powerful
LED's per dollar in the world. Penetration of the canopy is unmatched,
we use a combination of 60deg, 90deg and 120deg LED's and layout is
Patent Pending and has been refined 8 times in almost 4 years for the
perfect ballance between penetrating power and coverage area.
There are now the optimum ballance of spectrums for flowering. The
majority of the LED's are 630nm and 660nm but this light also has 730nm
infrared, 380 Ultraviolet, 425nm deep blue, 450nm blue and 12,000k Cree
white chipsets. This light can be used from start to finish during a
grow but they are especially useful for flowering. Our grow tests and
reviews from shops and customers tell us that due to the huge red
wavelength concentration, flowering is induced several weeks earlier
using this light. If you are looking for a light just to be used in
Veg/Clone, take a look at our High Output series.
Not all light is created equally. And neither are LED lights! At least
not as far as plants are concerned. This is a brand new model which uses
the most powerful LED available, 3watt chipset and a redesigned heat
sink for reliability. Beware other companies selling inferior Chinese
chipsets and not modifying the heatsinks. Multi-watt LED's need special
cooling, lighthouse disperses their LED's and has added additional FINS
and higher output fans to address this issue. Lighthouse light is unique
and the only company to use 425nm blue LED's for better flowering
performance. Below is an accurate chart of light spectrum usage by
plants.
Details can be found at
http://course1.winona.edu/sberg/308s05/Lec-note/15-new.htm
What does this mean for the indoor grower? This is the
wavelength spectrum of white light that plants use. So how does this
affect our analysis of HID lights? Below are the light output spectrums
of the most popular HPS and MH lights in the market.
The graphs speak for themselves. Neither HPS nor MH provide much
lumen output under 580nm. This means that the largest portion of lights
used by plants 420nm-455nm is not supplied by either light solution. The
peak lumen output is 580nm, 595nm & 615nm. As you can see, that
translates into a loss of about 83% efficiency when overlaid with the
light used by growing plants. Thus, a 40,000 400W HPS bulb translates
into 6800 actual usable lumens.
These charts are available from the manufacturers and widely
distributed, touting that they are closest to the natural light output
of the sun. Thing is, plant's don't use all of the sun.
There are mitigating factors. Our friends at Cornell have informed us
that a healthy plant gets the most vegetative boost from blue and
ultra-violet wavelengths. We have long known this in the industry
because traditional success dictated that vegetative growth is done
under MH lights (more blue) and flowering is done under HPS (Red)
lights. The later in leaf diameter is outlined in the study attached
below:
http://www.sae.org/technical/papers/2001-01-2272
The final analysis is that the most successful growth is found at
420nm, 450nm, 630nm and 660nm wavelengths. Red is slightly more
important for flowering but blue produces faster growth and absorption.
It is also important for plants to get more 600nm-630nm wavelengths
because it is reported that those wavelengths determine leaf diameter.
Larger leaves will make a larger plant. And who doesn't love a big
tomato plant! Larger leaves lead to larger surface area for further
absorption, etc, etc.
Since LED's produce a fairly uniform output +/- 10nm we concluded
that given the correct wavelengths, LED's could possible do the job if
they lumen output was great enough and they had the correct spectrum.
This item is available for drop shipping direct to your location!
Visit OregonGardener.com for additional options.
;)
