Here is the reflector that was used in the misleading photos above (that are then used to bolster misinformed arguements). It is a PFO horizontal unit
Read all about in Sanjays Reflector Article here:
http://www.advancedaquarist.com/issues/mar2003/feature.htm
Notice how that reflector is BLOWN away by the lumenarc???
NOTE OF POINT! Before anybody says "but not everybody owns a LUMENARC", remember that somebody that is going to spend $3000 on a fixture could as EASILY purchase a $200 Lumenarc. So the "argument" is 100% nonsense. You consider the PFO LED fixture to be the "BEST", then compare it to the "BEST" MH fixture. Otherwise you are handicapping the MH bulb to skew the results.
That PFO fixture used has a high intensity focus in 1 very small area, and drops off pretty quickly after that, as well as spreading the light out in a long path. Is the ssensor placed in that area... not a chance with par numbers like that. The lumenarc puts down a fairly consistent and tightly focused pattern. That is what SHOULD be used for the comparison.
Here is the graph from Sanjays website. See for yourself:
Also from Sanjays website:
RADIUM 20K SE BULB
85 PAR with MAGNETIC Ballast
66 PAR with ELECTRONIC BALLAST
Phoenix 10K SE:
160 PAR with HQI
133 PAR with MAGNETIC
94 with ELECTRONIC
What an utter bunch of CRAP those photos are above. Honestly, this is starting to get old. Notice how PFO jumps in here to defend their boxes, customer service etc. But they do not say a word about any of these arguments?
We are not trying to belittle the light. Many of us are just trying to show that IT IS NOT more efficient and that the logic being used to show that is more efficient is more than skewed.
When push comes to shove the "well coral does not need that much light" argument is used. So spend less money and use less MH. Less heat, less electricity and more savings. The further inflates the cost difference between the MH and LED fixture.
This should be a no brainer.
When LED technology steps forward, these fixture may very well become MORE efficient. THEN, when the price drops to a reasonable level they will possibly be a VALUE in Total Cost Of Ownership. At this point they are an EXPENSIVE ALTERNATIVE TO LOW WATTAGE MH OR FLUORESCENTS. That's it. They have some nice features and certainly have some niche uses that MH may not fill well.