Vertex Illumina LED Arrives

[Ron99]

I'm very curious to see the PAR readings, especially front to back with all those LEDs down the center. Can you do PAR readings at several points in the tank from front to back as well? Thanks.

[TheDogFather]

Originally Posted by Ron99

I'm very curious to see the PAR readings, especially front to back with all those LEDs down the center. Can you do PAR readings at several points in the tank from front to back as well? Thanks.

The LED's in this fixture have a 120 degree spread (60 front + 60 back) so it covers the entire tank easily.

LED fixtures with optics have typically only a 40 degree spread.

[Ron99]

Originally Posted by TheDogFather

The LED's in this fixture have a 120 degree spread (60 front + 60 back) so it covers the entire tank easily.

LED fixtures with optics have typically only a 40 degree spread.

Yes, but even with the 120 degree primary optic there is drop off in output off center so I am curious to see how these perform off center and if there is a hot strip down the middle of the tank.

[TheDogFather]

Originally Posted by Ron99

Yes, but even with the 120 degree primary optic there is drop off in output off center so I am curious to see how these perform off center and if there is a hot strip down the middle of the tank.

Please see the additional photos I posted below.

[4lti7ude]

Videos of the light modes please!!
Im imagining the sunrise one, and in my head it looks crazy
Oh and the clam in your tank is HUGE!

[Ron99]

Originally Posted by TheDogFather

Here is the technical review paper: http://files.me.com/braedel/xiipka

I have looked at this paper but have not sat down to read it in detail (to much math for late night reading). Two things strike me though. They don't actually show the results of a full PAR measurement across their 40" x 20" x20" test tank unless the charts they have are mislabeled as they show distances in mm in the charts. Also, this is an internally produced document that seems to be designed more to justify not using optics rather then as an independent test of their fixture so I take it with a grain of salt.

So that's why I am looking forward to seeing real world PAR readings over a real aquarium

[TheDogFather]

Originally Posted by Ron99

I have looked at this paper but have not sat down to read it in detail (to much math for late night reading). Two things strike me though. They don't actually show the results of a full PAR measurement across their 40" x 20" x20" test tank unless the charts they have are mislabeled as they show distances in mm in the charts. Also, this is an internally produced document that seems to be designed more to justify not using optics rather then as an independent test of their fixture so I take it with a grain of salt.

So that's why I am looking forward to seeing real world PAR readings over a real aquarium

Yeah, it's a heavy read but it's more detail than I have seen from any other LED fixture maker so far.

I'll take PAR readings on Sunday and post them here.

Cheers!

-TDF

[sphelps]

I'm not sure how one thinks measurements done by some dude in a basement over his aquarium with a hobby PAR meter classifies as more "real world" and therefore more accurate than laboratory tests done by a manufacturer which developed the product but whatever.... I think the document gave a good idea of what to expect. The PAR test was at 19" of water depth so the need to see PAR beyond what was presented wouldn't really be needed. Follow the pattern and you get the idea.

I have to say I like this fixture, it has almost everything I've been waiting to see in a LED fixture. Sleek look, easily upgradeable\replaceable parts, good warranty, and the controllability looks awesome!

Great fixture man, looking forward to seeing how it works out for you.

[TheDogFather]

Some additional photos: