"Kessil Logic"

[GoVols]

Dear Dana,
Can you explain how the "Kessil Logic" works.

Or do you fill like the "Kessil Logic" is like snipe hunting.

Regards, GoVols

 

[GoVols]

Update:
Just sent Kessil the email below and (lol) we'll see how they respond.

"Dear Kessil,
I understand that you have patents.

I just want to understand how the Kessil Logic works.

Is the two knobs controlling it or is it controlled by a built in computer chip?

I've always loved your products but half the people on Reef 2 Reef say that your "Kessil Logic" is a sales ploy.

Can you clear the air so people can understand that a chip is in play or not?

Regards, Freddie

PS: It would be very nice if you could have a sponsor thread on Reef 2 Reef."

 

[GoVols]

Update:
Kessil's response is the below.

"Hi Freddie,

Thanks for contacting us. We're very glad to hear about your interest in our products. Our Kessil Logic is designed in the Dense Matrix LED Chip in which the color spectrum is there only for aesthetics while the (white color) intensity (knob) is what matters most for yielding coral growths. I hope this helps clarify your question.

Feel free to let me know if you have additional questions.

Best,
Lai"

 

[donnievaz]

 

[Scurvy]

Love my Kessils but Really dispise their "Logic"!

 

[GoVols]

Love my Kessils but Really dispise their "Logic"!

LOL!!!!!!!!!!!!!!!!!

I still drink Kool-Aid and Kessil is my favorite flavor.

 

[GoVols]

@Sistawolf
Did you get your Kessil's to work with your Apex?

 

[K100286]

Following

 

[GoVols]

Following

From my understanding the Kessil Logic is in the Chip.
I still have a old A350w and that booger was hard to tune the color for what you like and what was healthy for corals.
A lot of reefer's bash Kessil about not releasing par specs. but I can personally say that since the Kessil Logic came out since the old a350's they are way better units and take the guess work out of tuning the correct color but you can still fry some carols real fast if you set the intensity to high too fast.

 

[JVU]

As I recall from a prior discussion "Kessil logic" is just their term for having presets that each are optimized for coral photosynthetic support while having differing aesthetic appearances (mostly more or less blue vs white). The reason this is helpful is that if you stay within the presets you won't make a horrible spectrum mistake like you easily can with other LED options. When you are setting your Kessil colors you are choosing between these presets to taste without sacrificing function. If you notice on the color wheel on the iPad interface for example, the left half are presets (Kessil logic- optimized for corals) and the right half are free-hand color mixes (not optimized for corals).

If someone knows better I'm interested to learn more.

 

[GoVols]

As I recall from a prior discussion "Kessil logic" is just their term for having presets that each are optimized for coral photosynthetic support while having differing aesthetic appearances (mostly more or less blue vs white). The reason this is helpful is that if you stay within the presets you won't make a horrible spectrum mistake like you easily can with other LED options. When you are setting your Kessil colors you are choosing between these presets to taste without sacrificing function. If you notice on the color wheel on the iPad interface for example, the left half are presets (Kessil logic- optimized for corals) and the right half are free-hand color mixes (not optimized for corals).

If someone knows better I'm interested to learn more.

+1
And the older Kessil's took a pretty good while and a lot of trial and error to get the color right but they also had a wider color spectrum. So it looks like to myself Kessil tighten up the color spectrum too the help out the Kessil Logic chip.

Do you run the AP700 with the I-pad. If so are you happy with your AP700?

 

[JVU]

I just upgraded to the AP700 myself, but I've been running other Kessil lights since their first light. I'm happy so far with it but would defer to the opinions of the many other more experienced users who have had it for quite a while already.

 

[saltyfilmfolks]

people on Reef 2 Reef say that your "Kessil Logic" is a sales ploy.

Go ahead and Say It Freddie! you mean me don't cha?

As I recall from a prior discussion "Kessil logic" is just their term for having presets that each are optimized for coral photosynthetic support while having differing aesthetic appearances (mostly more or less blue vs white). The reason this is helpful is that if you stay within the presets you won't make a horrible spectrum mistake like you easily can with other LED options. When you are setting your Kessil colors you are choosing between these presets to taste without sacrificing function. If you notice on the color wheel on the iPad interface for example, the left half are presets (Kessil logic- optimized for corals) and the right half are free-hand color mixes (not optimized for corals).

If someone knows better I'm interested to learn more.

Yup It's idiot proof basically. That's the logic.

 

[dangros]

Yeah but are you happy?

Go ahead and Say It Freddie! you mean me don't cha?


Yup It's idiot proof basically. That's the logic.

 

[madweazl]

PAR values using an Apogee MQ500 with full spectrum sensor. Two 360WEs mounted 5" above the water on a standard 75g tank (48x18). Color at 65% and Intensity at 40%.

 

[GoVols]

Yup It's idiot proof basically. That's the logic.

+1...
as far as setting the color and I'm an idiot ;Wacky that just moved up from moron status. ;Cow

But you can still cook your corals real fast with the wrong intensity and that's why they are coming out with the "Kessil Par". ;Woot ;Woot

 

[1stNoel]

I've cooked so many corals, you'd think it was a barbeque.

 

[dangros]

@madweazl, I was getting similar but lower readings on my 90 with the same 2 Kessils. Mine are about 10" off the water, however. The significantly lower readings on the bottom were one reason (that and shadowing) I'm considering either getting a 3rd or switching them out entirely. It's also interesting to keep the powerheads on and see how much the readings bounce around with the light reflections.

PAR values using an Apogee MQ500 with full spectrum sensor. Two 360WEs mounted 5" above the water on a standard 75g tank (48x18). Color at 65% and Intensity at 40%.

 

[madweazl]

@madweazl, I was getting similar but lower readings on my 90 with the same 2 Kessils. Mine are about 10" off the water, however. The significantly lower readings on the bottom were one reason (that and shadowing) I'm considering either getting a 3rd or switching them out entirely. It's also interesting to keep the powerheads on and see how much the readings bounce around with the light reflections.

I left the pumps on when I took the measurements and took the average of the input; one of the surprises was how much higher it could peak from that average (I expected the lows but not the highs). My acros sit in the area that was measured at 106 and are doing great so I have no reason to change the lighting. I like the shadows that are created and if this creates an issue as the corals continue to grow out, I'll add more lights (actually looking to upgrade to a 200+ gallon setup in the next year so I'll likely be adding more).

Edit: Also, those measurements were made at 40% intensity. Speaking of intensity, I run a parabola from 11% (where they turn on) to 40% on a 12 hour photoperiod so they actually receive considerably less PAR for the majority of the period. Color is on a two hour ramp from 11% to 65%.

 

[saltyfilmfolks]

+1...
as far as setting the color and I'm an idiot ;Wacky that just moved up from moron status. ;Cow

But you can still cook your corals real fast with the wrong intensity and that's why they are coming out with the "Kessil Par". ;Woot ;Woot

Its actually a really good plan on their part if you think about it. It came when most or many led were in a blue white mix. So incorporating a ratio one either side of the dial that still works spectrally is neat. It leaves only intensity to worry about.
The strange Par claims and lack of specs was a bit annoying and alt fact, but we had the same with many of our cameras and HD. Still having that with 4k tv's.