That's great stuff...
1) I'm surprised the Razor isn't a little higher PAR.. With 54 .5w leds, that is theoretically 27w, which is more than the Planted+ consumes, and I would have expected it to be around the same range PAR wise. Perhaps they're under-driving those LEDs quite a lot (which is good news lifespan wise, but not so much brightness wise).
3) your numbers on the Planted+ vs Ray2 confirm my long-standing suspicion that for the 30" models, the Planted+ ends up being near or even slightly higher PAR, if only because the Ray2 is only a 24" fixture... Looking at your data, the Ray2 is more powerful below 12", which also makes sense. Once you start getting very close, lights far off to the side start falling out-of-angle and no longer create overlap. Beyond 12" the Planted+ ends up slightly higher. I suppose at some depth the ray2 will catch back up, as the extra red of the Planted+ will start falling off as you get deeper, but that's probably not going to be strong enough to overcome the PAR difference happen until you are much deeper than the tanks of mere mortals... (ie: I could see the Ray2 overcoming it at 48", but that's really too deep for either fixture to do much)
Bump:
All in-tank measurements of Finnex fixtures should be way above manufacturer spec, at least for any tank with relatively clear water.... The MFG specs are in-air numbers, and the air-water boundary focuses the light, tank wall reflections contribute, etc, which will increase PAR.
edit: actually, they're not really *that* much higher:
http://www.plantedtank.net/forums/showthread.php?t=189944
30" Ray2 Grizzly_a vs Finnex data from 24" model
6” 168 vs 165
12” 80 vs 74
18” 47 vs 39
30" Fugeray Grizzly_a vs Finnex Data
6” 116 vs 115
12” 62 vs 48
18” 37 vs 30
1) I'm surprised the Razor isn't a little higher PAR.. With 54 .5w leds, that is theoretically 27w, which is more than the Planted+ consumes, and I would have expected it to be around the same range PAR wise. Perhaps they're under-driving those LEDs quite a lot (which is good news lifespan wise, but not so much brightness wise).
3) your numbers on the Planted+ vs Ray2 confirm my long-standing suspicion that for the 30" models, the Planted+ ends up being near or even slightly higher PAR, if only because the Ray2 is only a 24" fixture... Looking at your data, the Ray2 is more powerful below 12", which also makes sense. Once you start getting very close, lights far off to the side start falling out-of-angle and no longer create overlap. Beyond 12" the Planted+ ends up slightly higher. I suppose at some depth the ray2 will catch back up, as the extra red of the Planted+ will start falling off as you get deeper, but that's probably not going to be strong enough to overcome the PAR difference happen until you are much deeper than the tanks of mere mortals... (ie: I could see the Ray2 overcoming it at 48", but that's really too deep for either fixture to do much)
Bump:
Jeff,Thanks.. The Razor is unexpectedly low in PAR...
Best guess is the ind. diodes are set to only output 150mA
Out of curiosity can you see the resistor number on the RayII and the ps voltage?
As a side note: Your RayII data is way above manuf. spec:
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All in-tank measurements of Finnex fixtures should be way above manufacturer spec, at least for any tank with relatively clear water.... The MFG specs are in-air numbers, and the air-water boundary focuses the light, tank wall reflections contribute, etc, which will increase PAR.
edit: actually, they're not really *that* much higher:
http://www.plantedtank.net/forums/showthread.php?t=189944
30" Ray2 Grizzly_a vs Finnex data from 24" model
6” 168 vs 165
12” 80 vs 74
18” 47 vs 39
30" Fugeray Grizzly_a vs Finnex Data
6” 116 vs 115
12” 62 vs 48
18” 37 vs 30
