ReeFi LED Uno - Testing Soon

[Kodski]

I was planning on using some Kessil A360X's for my new build, but I think I'm going to order the Reefi Uno's instead. It looks really promising and at a really affordable price point.

 

[RhinoNM]

I just bought 3 Uno's to run over a 48" tank and am considering purchasing a 4th and running 1 on each side of the tank with 1 light behind each. Essentially like a Duo puck setup.

My only concern is the color these put out without having to dial back a bunch of the channels thus lowering PAR. This light has 48 or 67% of its Leds in the Violet spectrum. I love the crisp blue look of the Radion Blue g5's at all channels driven @100%.

Would the Uno be very "Violet" leaning rather than "Blue". On this version they have even lowered the amount of Royal & 470nm Blue leds vs the Duo further concerning me. Royal blue IMO being the most eye appealing spectrum (should be a substantial part of the spectrum)

I cant stand the old VHO fluorescent tanks that have that Violet/Pepto tint...I want crisp/pooping blue. I can obviously turn down the Violets to tone it down but theres not enough royal blues for PAR at that point.

Can anyone comment?

 

[Dana Riddle]

I just bought 3 Uno's to run over a 48" tank and am considering purchasing a 4th and running 1 on each side of the tank with 1 light behind each. Essentially like a Duo puck setup.

My only concern is the color these put out without having to dial back a bunch of the channels thus lowering PAR. This light has 48 or 67% of its Leds in the Violet spectrum. I love the crisp blue look of the Radion Blue g5's at all channels driven @100%.

Would the Uno be very "Violet" leaning rather than "Blue". On this version they have even lowered the amount of Royal & 470nm Blue leds vs the Duo further concerning me. Royal blue IMO being the most eye appealing spectrum (should be a substantial part of the spectrum)

I cant stand the old VHO fluorescent tanks that have that Violet/Pepto tint...I want crisp/pooping blue. I can obviously turn down the Violets to tone it down but theres not enough royal blues for PAR at that point.

Can anyone comment?

I will after I get some chores done.

 

[oreo54]

I just bought 3 Uno's to run over a 48" tank and am considering purchasing a 4th and running 1 on each side of the tank with 1 light behind each. Essentially like a Duo puck setup.

My only concern is the color these put out without having to dial back a bunch of the channels thus lowering PAR. This light has 48 or 67% of its Leds in the Violet spectrum. I love the crisp blue look of the Radion Blue g5's at all channels driven @100%.

Would the Uno be very "Violet" leaning rather than "Blue". On this version they have even lowered the amount of Royal & 470nm Blue leds vs the Duo further concerning me. Royal blue IMO being the most eye appealing spectrum (should be a substantial part of the spectrum)

I cant stand the old VHO fluorescent tanks that have that Violet/Pepto tint...I want crisp/pooping blue. I can obviously turn down the Violets to tone it down but theres not enough royal blues for PAR at that point.

Can anyone comment?

Well light was designed for heavy violet.
That said you have blue/royal blue/ and the cool white adds quite a bit of PAR to the tank.
What do all 3 at 100% and everything else at zero look like?
If you get lucky and like all 3 at 100% then next step.
Start adding all the violets to choice. The lowest like 400nm shouldn't impact tone as much (too many variables to be exact in predictions)

There are infinite color combinations and many different power levels on the diodes soo only can GUESS a bit.

Lime won't "violet" it out (well red/blue is magenta not violet but I digress) but ww and pc amber will so avoid those though adding a wee bit of pc amber is good.

 

[Dana Riddle]

When running the Uno at 100% power on all channels:
UV-A = 6.3%
Violet = 27.6%
Blue = 40%
Green-Blue = 2.4%
Blue-Green = 2.8%
The 400nm LEDs (4 of them) at 100% = 71% in the UV-A range, 20% Violet, 2.3% Blue.
Four 420nm LEDs at 100% = 3.1% UV-A, 80.1% Violet, 12.2% Blue.
Four Violet LEDs = 1.2% UV-A, 60.7 Violet, 33.1% Blue.
Ten Royal Blues = 0.9 UV-A, 4.9 Violet, 88.3% Blue,
Six Blues = 0.6% UV-A, 0.7 Violet, 73.8% Blue, 12.8% Green-Blue.

 

[RhinoNM]

Thx for the feedback Dana.. Definitely a large bump in the violet range, i bet they will grow coral just fine.

 

[Petesreef]

When running the Uno at 100% power on all channels:
UV-A = 6.3%
Violet = 27.6%
Blue = 40%
Green-Blue = 2.4%
Blue-Green = 2.8%
The 400nm LEDs (4 of them) at 100% = 71% in the UV-A range, 20% Violet, 2.3% Blue.
Four 420nm LEDs at 100% = 3.1% UV-A, 80.1% Violet, 12.2% Blue.
Four Violet LEDs = 1.2% UV-A, 60.7 Violet, 33.1% Blue.
Ten Royal Blues = 0.9 UV-A, 4.9 Violet, 88.3% Blue,
Six Blues = 0.6% UV-A, 0.7 Violet, 73.8% Blue, 12.8% Green-Blue.

Thanks Dana, I hope this means your life/house is starting to get a little more back to normal now (whatever "normal" means this year Can you comment on the look of the light @ 100% power all channels or is that too subjective (I would ask Daniel but I think he's in R2R jail)?

 

[RhinoNM]

Me too... Would appreciate your thoughts of the light look @ 100%.

 

[Dana Riddle]

Thanks Dana, I hope this means your life/house is starting to get a little more back to normal now (whatever "normal" means this year Can you comment on the look of the light @ 100% power all channels or is that too subjective (I would ask Daniel but I think he's in R2R jail)?

Thank you or much. To say the last month has been a stressful trial would be an understatement. The roof is still covered with a tarp while I wait for the insurance company to make their move. Fortunately, it hasn't rained much, but the weather report says that is about to change. Well, enough for that. On to the important things in life - reef lighting. LOL.
The Kelvin rating of the Uno at full power on all channels exceeds the range of my meter. Eyeballing it suggests Kelvin is ~14,000K.

 

[Dana Riddle]

Me too... Would appreciate your thoughts of the light look @ 100%.

I just attached a photo.

 

[oreo54]

I just attached a photo.

Well. Photos can be a bit deceiving.. Is it a violet toned 14000k or blue toned 14000k ish?
Photo def iooks bluish but with a violet rim.

Almost better to judge by spill on a white wall.

Their pic

 

[Dana Riddle]

Well. Photos can be a bit deceiving.. Is it a violet toned 14000k or blue toned 14000k ish?
Photo def iooks bluish but with a violet rim.

Almost better to judge by spill on a white wall.

Their pic

Spectroscopy shows bluish with violet (40.9% v. 27.6%, respectively.) I've got a chart that I'll publish later that shows the Uno covers a 2' x 2' surface area very well, with little spillover (<100 microMol/m2/sec/)

 

[blasterman]

This is an interesting light and is starting to show the direction light makers should be going. It's also priced sanely.

The problem though is it's a high density solution and serious reefers with big tanks are trending towards more distribution; aka reef brite, etc. If you want shimmer you get a kessil.

The large amounts of violets are what will prevent me from buying it. Prefer a 4/1 mix of 450 to 470.

 

[Gordonm]

I received a ReeFi Uno LED luminaire for testing. Hope to get started late Tuesday or Wednesday. Photo taken at ISO 100, f/32 and 1/4000th second.

Where have I heard that before.

 

[Dana Riddle]

Where have I heard that before.

You've heard it from me. Testing is tedious and time-consuming (taking weeks to gather data, analyze it, graph it, insert it into a written report) and life can interrupt my best laid plans.

 

[mattzang]

is the ratio for blue to violets different for the unos than it was for the duo extremes? i was kind of worried because it seemed like a lot of pictures online of tanks using duo extremes had a definite purple/violet hue to it, but having had mine in person it seems like any basic reef light i've ever come across in ai/kessil/etm. i do prefer more of a daylight type look than the all blue look people go for these days tho

 

[oreo54]

Just for fun regarding human color perception..

Why do we see violet at the high end of light spectrum but we only have blue, green, and red receptors in our eyes? Violet is a combinati...

Answer (1 of 9): First, realize that blue receptors don’t respond only to blue light and green receptors don't respond only to green light. For example, both green receptors and red receptors respond to yellow light. That’s how you see yellow. Testing of color matching using just red green and b...

www.quora.com

The relative sensitivities peak at around 600, 550, and 450 nm. We see these wavelengths not as red, green and blue but as violet, yellowish green, and reddish orange. The nominally blue peak is well separated, but the nominal red and green peaks are relatively close. The color we see as green is not at the peak of the green curve but at the minimum of the red curve at 500 nm. Observed red deepens as we move from the nominal red peak at 600 nm toward 700 nm. Color depends more on the ratios of excitation of the 3 types of color sensors than on the absolute values.

The red receptors have a second, smaller peak in the blue range, so blue light excites the red receptors even when no red light is present. The color we see as blue lies not at the nominal blue peak around 450 nm but at the maximum ratio of blue and red sensitivity at closer to 475 nm. By 450 nm blue has shaded off into violet, which carries a hint of redness quite different from that of magenta.

Better:

When Do Short-Wave Cones Signal Blue or Red? A Solution Introducing the Concept of Primary and Secondary Cone Outputs

A recent paper by Oh and Sakata investigates the “incompletely solved mystery” of how the three cone responses map onto perceived hue, and particularly the S cone’s well-known problematic contribution to blueness and redness. Citing previous workers, they argue the twentieth century traditional...

journals.plos.org

 

[RhinoNM]

I just attached a photo.

Thank you. That photo clears up all of my concern. That spectrum looks perfect.

 

[Kodski]

I just preordered 3 lights for my new build! I can't wait to get them!

 

[jacoviii]

Yep me too just ordered 4 for my 300dd