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You waste a ton of
energy using metal halide lighting because you have to mount it away
from the water surface to avoid glass breakage from water splash hitting
the super hot glass of the bulb. The radiant heat, that is a by
product of metal halide lighting, has long been the nemesis of keeping
reef tanks cool.
These two areas are where we gain an advantage over metal halide
lighting. Because you cannot shatter the AquariumLED lamp, we can
recommend mounting as close as 2 inches off the water surface!
With our innovative heat sink design, the heat generated by the led
lamps is pulled up and away from the bulb plate never affecting your
water temperature and prolonging the life of the led lamp itself.
Based on PAR readings by the most respected people in aquarium lighting
analysis, most of the 175 watt metal halide lamp / ballast combinations
provide around 63-87 ppfd at 18 inches. This means that if you
have a 20" deep tank and a 2 inch sand bed, you can get the advertised
ppfd to the sand bed IF
you mount the lamp at the water surface. However, when you mount
the lamp at a safe distance from the splashing water so you don't
shatter lamps and electrocute your inhabitants, the PAR readings drop
dramatically at the sand bed. By mounting the metal halide lamp
just 9 inches from the surface you have reduced the available light to
the low 20's - low 30's ppfd and you are still spending a ton of money on
electrical bills to light and cool your tanks! |

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Our PAR Readings:
Apogee Instruments Quantum Meter
Wet Setup: Bulb mounted 14"
above bottom of tank, 2" above water surface with 10-11" water in tank
PAR Reading: Center 220-230 ppfd
6" Off Center (Left and Right) 205-208 ppfd
Dry Setup: Bulb mounted 14"
above table surface
PAR Reading: 90-95 ppfd |
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