Caravaggio
Member
Oh so those are all DE Bulbs?
yessir
Oh so those are all DE Bulbs?
I'm interested in that too.
The a/c hood is cooled but not inside the reflector. But if this test was with out ducting it could be a higher temp
So was it a higher temp inside the reflector resulting in more par?
The AC/DE hood is absolutely huge, like, top to bottom. From what I understand they have some crazy expensive reflective material in there (as well as the Luxor 8) that is fueling the light spread.
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Hi Caravaggio,
Take a look at the image above. The idea is that the light coming from an ePapillon is spread onto a larger area.
When using only 1 fixture on a small surface, you could be better of with a different fixture if you prefer a high lightlevel directly underneath your fixture. If you don't like hotspots and like a more even spread, use the ePapillon.
When using multiple fixtures, you'll always be better of with the ePapillon due to the overlapping and more diffuse light. Also you'll get much less hotspots on the canopy (which your image actually shows).
The light of the aircooled reflector is spread on a surface of 3ft x 3ft.
The light of the ePapillon is spread on a surface of 4ft x 8ft.
The total lightoutput of the ePapillon is 2100 micromol/s from the bulb and a 95% reflectorefficiency (meaning the amount of light reflected to the canopy).
Using a glass cover will always cost you efficiency. After some time when it gets dirty you can loose up to 10%.
If you spread the light on a larger surface it's obvious you'll measure less light under only 1 fixture.
Not sure exactly what you're talking about because that test was all hood that had no glass and were uncooled.
The problem with the ePaps and Gavitas is the need for more cooling due to the fact you cant place your Ballasts outside the grow room.
Caravaggio - great uniformity data/chart. What mfg paid for it?Pretty major test was just done on all the major Dual Ended bulbs and fixtures. The tests were done by a 3rd party. The results were posted on a local forum here where I live so I figured id share. Pretty impressive results on the AC-De's.
The Gavita def outperformed the ePaps in the par department. All values are in Par value.
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Caravaggio - great uniformity data/chart. What mfg paid for it?
Thanks DGS,
I'm still a little confused. When you say it doesn't make sense for a 4-6% heat, do you mean the ballasts don't get very hot and there wouldn't be much benefit from moving them?