Vertex Illumina LED Arrives

parkinsn · #1 07-07-2010, 04:07 PM

Tagging along. I would like to see the PAR readings as well as the long term effects on your coral. The tank looks like its getting really good coverage.

1)What are the dimentions of your tank?

2)What kind of lighting did you have on the tank before?

3)Is it possible to get a pic of the side of your tank so we can see the coverage/any dark spots?

4)How high is it off your tank?

Thanks.

Ron99 · #2 07-07-2010, 05:01 PM

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 · #3 07-07-2010, 05:40 PM

Quote:

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 · #4 07-07-2010, 06:04 PM

Quote:

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 · #5 07-07-2010, 06:10 PM

Quote:

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 · #6 07-07-2010, 06:16 PM

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 · #7 07-07-2010, 06:25 PM

Quote:

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 · #8 07-07-2010, 06:46 PM

Quote:

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

TheDogFather · #9 07-07-2010, 10:50 PM

Some additional photos:

TheDogFather · #10 07-07-2010, 05:38 PM

Quote:

Originally Posted by parkinsn

Tagging along. I would like to see the PAR readings as well as the long term effects on your coral. The tank looks like its getting really good coverage.

1)What are the dimentions of your tank?

2)What kind of lighting did you have on the tank before?

3)Is it possible to get a pic of the side of your tank so we can see the coverage/any dark spots?

4)How high is it off your tank?

Thanks.

1 The tank is 48" wide, 18 tall and 30" deep

2 The previous fixture was a 8 bulb ATI powermodule

3 Side shot coming this weekend, no dark spots

4 The fixture is 6" from the water surface

Cheers!

-TDF