chinese led lights

[phragger]

After looking at them last night how do you like the 450's for the moon lights?

If the lights are going to be about 5 inches above the tank should I still go with 90 degree optics or a different lens or no optics?

[bhazard451]

Originally Posted by phragger

After looking at them last night how do you like the 450's for the moon lights?

If the lights are going to be about 5 inches above the tank should I still go with 90 degree optics or a different lens or no optics?

450s for moonlights are perfect. You can dim them down to 1% for a very faint moonlight. It automatically turns them off after 2am which I like too, and you can adjust the times they turn on/off.

[bhazard451]

Originally Posted by Tmoriarty

I have been watching this thread for a while, I wanted to use one of these lights as a test subject over my seahorse tank, and then if they work well, over my reef tank. My question is this....

While I like what your setup is Bhazard, I prefer the 18-20k look. Can you explain your layout a little better so that I can understand it. I am not sure what the 35k/65k lights are in your setup. When the layout is sent to Sam, do we need to use those numbers are is listing lights as CW/WW/NW acceptable. Also I would like some light in the violet ranges, perhaps 4 in the fixture to help make those floruescent corals pop.

Thank you ahead of time for the help.

For 20k, you need more royal blue, less white, and higher K whites.

If you are to use 6500k and 10k whites, it might be good to add 2-3 red too for better color. I only used 3500k warm white to try to increase red output without using reds themselves.

They can help with led color temps. They have a lot to choose from.

[phragger]

If the lights are going to be about 5 inches above the tank should I still go with 90 degree optics or a different lens or no optics?[/QUOTE]

What's your opinion about the optics?

[bhazard451]

Originally Posted by phragger

If the lights are going to be about 5 inches above the tank should I still go with 90 degree optics or a different lens or no optics?

What's your opinion about the optics?[/QUOTE]

Keep them. I would go no less than 90 degree. I tried 60 degree and didn't like them.

[phragger]

I noticed you used 470nm blues but no Royal blue which I understand is 440nm. Why?

[bhazard451]

Originally Posted by phragger

I noticed you used 470nm blues but no Royal blue which I understand is 440nm. Why?

I used 450nm Royal Blues and 470nm Blue. 450nm is the peak you want to hit.

480-490nm Cyan is the optimal wavelength for another photosynthetic peak and coral color, but they do not carry them, so I used some 470nm.

[phragger]

Interesting, the list of LED's available I got from Sunny show 460nm and then 520nm with nothing in between.

[marco_1962]

Originally Posted by phragger

Interesting, the list of LED's available I got from Sunny show 460nm and then 520nm with nothing in between.

Can you post it please?

[jiriki]

Can these units connect in series? IE, program one, and all three would get it? Or they don't integrate with each other?

[phragger]

730
660
630
600-610
595-600
520
460
450-455
440-445
410-420
400-410
380

W(3000-3500k)
W(4000-4500k)
W(6000-6500k)
W(6500-7000k)
W(7000-7500k)
W(7500-8000k)
W(8000-8500k)
W(10000-12000k)
W(12000-14000k)
W(16000-18000k)
W(18000-20000k)
W(20000-22000k)

[marco_1962]

Originally Posted by phragger

730
660
630
600-610
595-600
520
460
450-455
440-445
410-420
400-410
380

W(3000-3500k)
W(4000-4500k)
W(6000-6500k)
W(6500-7000k)
W(7000-7500k)
W(7500-8000k)
W(8000-8500k)
W(10000-12000k)
W(12000-14000k)
W(16000-18000k)
W(18000-20000k)
W(20000-22000k)

Thanks Phragger, does someone know if they are all Bridgelux?

[bhazard451]

Originally Posted by jiriki

Can these units connect in series? IE, program one, and all three would get it? Or they don't integrate with each other?

You can connect the power cords in series to run off one power cord. You would have to program each one if you wanted to make changes I believe.

I wonder if the wireless remote would change more than 1 unit at once....

[exterminatank]

Ok. I have a ???. Which blue is a more blue color and which one is more on the people spectrum? 440NM, 450NM, 460NM?


The one... The only... Exterminatank!

[bhazard451]

Originally Posted by exterminatank

Ok. I have a ???. Which blue is a more blue color and which one is more on the people spectrum? 440NM, 450NM, 460NM?

The one... The only... Exterminatank!

450nm is the most beneficial, and it arguably looks the best.

[joego2]

Just ordered 3 fixtures ($500)with blue channels to be - 14(460nm), 8(450-455nm), 8(400-420). White channel - 17(8000-8500), 8(3000-3500). The company evergrow sent their stock fixtures 4 UV, blue and white, prob 14000k. I am in communication with their sales rep Sunny Sun to see if they will correct this screw up.

[exterminatank]

Originally Posted by bhazard451

450nm is the most beneficial, and it arguably looks the best.

I'm trying to stay away from the purple look. That's why I'm asking. Thanks for the info...

The one... The only... Exterminatank!

[FrEsHaZzBuRu]

Originally Posted by exterminatank

Ok. I have a ???. Which blue is a more blue color and which one is more on the people spectrum? 440NM, 450NM, 460NM?

For Chlorophyll A, the peaks are at 417nm and 625nm, and for Chlorophyll B, the peaks are at 436nm and 655nm.

Here's a good chart to refer to for important spectrums.

Originally Posted by exterminatank

I'm trying to stay away from the purple look. That's why I'm asking. Thanks for the info...

The one... The only... Exterminatank!

The lower in wavelength you get in the 400-500nm range, the more purple it gets. Anything above about 460nm is pretty much just for looks. If you combine the blues with warm and neutral whites, you should be able balance the amount of "purple" you don't want, as well as get the higher part of the spectrum as the white will emit some of the higher wavelengths.

[exterminatank]

Originally Posted by FrEsHaZzBuRu

For Chlorophyll A, the peaks are at 417nm and 625nm, and for Chlorophyll B, the peaks are at 436nm and 655nm.

Here's a good chart to refer to for important spectrums.





The lower in wavelength you get in the 400-500nm range, the more purple it gets. Anything above about 460nm is pretty much just for looks. If you combine the blues with warm and neutral whites, you should be able balance the amount of "purple" you don't want, as well as get the higher part of the spectrum as the white will emit some of the higher wavelengths.

Thanks for your rrply. So your saying 440NM is more purple than 460NM?



The one... The only... Exterminatank!

[bhazard451]

Originally Posted by exterminatank

Thanks for your rrply. So your saying 440NM is more purple than 460NM?


The one... The only... Exterminatank!

420-440 look purple. They are also much more dim visually than blues. 450 looks like a deep royal blue. 460-470 is cool blueish, but you can't tell a difference from the 450nm leds by looking at them, at least not the ones Evergrow uses.

[mlott132]

Just received confirmation from Lyn that my new Twilight units will be in this Friday. Can't wait to see how their new grid dimmer layout looks. Should be a ton better then what I started out with.

[bhazard451]

For anyone else looking at Twilight, they will do Cree XPG/XPE in the 55x3 light for around the same price as the bridgelux one now too.

Sent from my SGH-T999 using Tapatalk 2

[ChrisChow]

Thank you! That's what I thought. Interesting that the LFS said 1 Radion would be fine. I might have to buy two of these or go with their NOVA setup.

Originally Posted by denny crain

I just got my light today. My tank is 30 and the coverage is pretty good, a little light on the side. but I am still playing with the right hight. I would think 36 would be pushing it.

[exterminatank]

Ok. Been working on this a bit. Thoughts? Opinions? For those who have these leds already do you think you can picture the outcome of these together? I don't want it too purple colored (if that makes sense) but also trying to get a good amount of different spectrums for good coral growth. What do you think? You think it is necessary or just stick to 450NM blues and 6500k and 18000k bulbs?uploadfromtaptalk1346903791651.jpguploadfromtaptalk1346903831882.jpg

[exterminatank]

Sorry. I don't know why they came out sideways and double posts...