Looking for led multichip advice/experience

[Claus01]

Hi,
First post from me on this wonderful forum. :)

I've got some "old" Ecoxotic Cannon Pro 100 powered by Meanwell HLG-100H-36B that I would like to utilize in my new build. It does however seem that the multichip/COB in the lamps needs to be replaced.
Initially I wanted to replace the original Edistar 100w chip from Edison opto, but I've had no luck (with Ecoxotic or anywhere else) in locating original new ones.
So I guess the only option is to find a viable substitution for the original chip - and hopefully there has even been some improvements in that field, since the Edistar was made almost 10 years ago.
Which brings me to my question. :)

What chip/COB would you recommend today, if the goal was to get a durable multichip with an optically pleasant colortemp around 12000-15000K ? The tank will primarily be for LPS-corals. But supplemental light can be added later on if I decide to go all in on sps.

I've been looking at the 100w CREE XT-E multichip, with 5x 3000K, 5x 6000K and 10x Royal Blue, which looks somewhat promising (not sure if it's allowed to post links here)

Also if anyone in here has experience in doing this operation on the Cannons, I would love to hear about it.

I appreciate any input you can give on this.

 

[oreo54]

Just need to match the replacement chip to driver..
biggest hurdle is finding one that can take 2.65A
Max V(f) (@ 2.65a) is 36V
and color..

"B" is 0-10V dc or 10V PWM adjustable..

This might work..
https://www.ebay.com/itm/100W-Cree-...586387?hash=item5427d5f5d3:g:HwMAAOSwAKxWZq4V
"color" is another story..
Should have a tone like this approx:
https://www.color-hex.com/color/7645ff
Pattern should fit.. If the mounting holes are different, it can be thermal epoxied to the heatsink.
for slightly ove $20.. hey what would you expect.. ;)

Chip dimensions:
Dimension: 55x40x1.6mm


more important that the diode foot print is close..

 

[Claus01]

Thanks so much for your reply oreo5457.
That is the exact same chip i have been looking at. May be a bit too purple though. Cool feature with the color-hex.
Guess I'll have to order one and just try out how it fits.

 

[oreo54]

Thanks so much for your reply oreo5457.
That is the exact same chip i have been looking at. May be a bit too purple though. Cool feature with the color-hex.
Guess I'll have to order one and just try out how it fits.

Yea I need to read slower.. realized that when I cam back to this. ;)
Anyways it should be like any "20000k" MH with a possible undertone of a slight yellow. (warm whites) but that's a guess.
and depends on the bins of the whites..and ones sensitivity....It shouldn't..

There are lower k chips in that "series" but top end is about 10000K
Sadly sort of a gap..

Specs like this:


Data for 1W chips btw..
* MIXING LIST
----------------------------------------
Cree XT-E CoolWhite (5000-8300K) [120°] x5
Cree XT-E WarmWhite (2200-3700K) [120°] x5
Cree XT-E RoyalBlue (450-465nm) [120°] x10
----------------------------------------

* SIMULATION DATA
----------------------------------------
Luminous flux : 1,396 lm
Radiant flux : 8,966 mW
PPF : 36.9 umol/s
TCP : ‑ K
CRI : ‑
λp : 448 nm
Color : #7645FF
----------------------------------------

* PERFORMANCE @ 30cm
----------------------------------------
Irradiance : 10.6 W/m²/s
Illuminance : 1,646 lx
PPFD : 43.5 umol/m²/s
----------------------------------------

by SPECTRA 1.0β @ 1.023world
http://spectra.1023world.net/
There is a "plain" 6500k white /Royal blue version:
https://www.ebay.com/itm/50W-100W-C...hash=item54499f89db:m:m3LDFBKxpI-xpLvkcnnPQwQ