Chinese LED Lights

[Travis1787]

So would you use the reds with that many blues at all? Or you just saying your not sure how it would look so add it with caution ?

 

[boxer385]

I have 60x26x28 tank how many of the It2040's would it take to cover. Also would one power cord run all three, and does one controller run all three? If not how hard would it be to program them all the same?

Thanks

i want to know i have the 250DD i like this fixture because it appears to use
one cord per fixture. i was thinking about 3 would be good. I have a soft/lps
system.

 

[ChrisChow]

What light did you use for your cheato?

I was thinking about picking up one of the red grow lights evergrow
sells for the sump but I was concerned about alge.

Mike

I have this turned on 23 hours of the day:

http://www.aquatraders.com/14-inch-1x24W-Power-Compact-Light-Fixture-p/51106.htm

 

[bezlar]

i want to know i have the 250DD i like this fixture because it appears to use
one cord per fixture. i was thinking about 3 would be good. I have a soft/lps
system.

I have two of the older 120 style on my tank now but think three would be better. Would also like less cords and a sun rise/set controller.

 

[oscar]

Been following this thread for awhile and have decided to go with one of the d120 fixtures. Pretty sure I've made my mind up regarding color . I am setting up a 40gallon breeder, and planning on one fixture. My last decision is optics I am not going to be using a canopy and just going to hang it so my question is do I need/want optics?

 

[acanthurus4lyfe]

Some info about wavelength

Some info about wavelength

From my research over the years in lights for many different applications id have to say wavelength is very important. here is a graph of what wavelengths chlorophyll A and B absorb the most of.

And why I wonder how cree LEDs do so well even though bridgelux actually hits the 420 spectrum which imo is harshly neglected in the LED industry. and very important. Could it be just the increase in efficiency (lm/W) or does cree have an led that hits this spectrum?

CREE xp-e color wavelengths

Im looking at many fixtures in china, but want the broader spectrum bridgelux offers and still have the power of crees.

Solutions?

 

[cmac23]

DIY is the answer is you want CREE and spectrum

 

[bhazard451]

There is no Cree 420nm yet. The only solution is to use a 420 from another led manufacturer.

The maxspect razor does use 420nm too. As far as these fixtures go, you would need bridgelux/epistar to get 420nm.. or someone would have to design a pcb to use both Cree and bridgelux.

The newer gen Crees are used best in commercial fixtures, or in DIY ones for the time being. I dont find the old gen all that appealing for the price premium.


Sent from my SGH-T999 using Tapatalk 2

 

[kevin32]

90 if you don't have a canopy, 120 (no optics) if you do. Without a canopy and 120 degrees, it'll practically blind you if you hang it high and will spill light outside of the tank.

Yeah I dont use canopy. I"m just gonna hang it.

 

[kevin32]

I saw some asking about covering for 36 inch tank. I run a d120 on a 65 gallon tank the size is 36 long 18 wide 21 tall and I used 120 degree lenses .... it covers my whole tank with no problems ... its in a canopy ....

Nice ... thanks for the heads up.

 

[Jewlover]

Can some of you guys/gals post some pictures of your color layout. As well as a picture of your tank so I can get a better idea of what I like. Thanks for the help

 

[kevin32]

90 if you don't have a canopy, 120 (no optics) if you do. Without a canopy and 120 degrees, it'll practically blind you if you hang it high and will spill light outside of the tank.

When you say hang high, how high are we talkin about...:beer:

 

[giztok]

Hello, i have 16 g Dennerle Nanocube 60 aquarium. It measures 15" (L) x 15" (W) x 17" (H).

Now i want to use LED as lightning, in tank i will have SPS and LPS. But i do not know which LED is suitable for this size. D120 is probably too big, so is there any smaller 25 x 3W or 36 x 3w led light out there (like D120). Or is D120 ok for this tank?

What do you suggest?


:idea:

 

[bhazard451]

Hello, i have 16 g Dennerle Nanocube 60 aquarium. It measures 15" (L) x 15" (W) x 17" (H).

Now i want to use LED as lightning, in tank i will have SPS and LPS. But i do not know which LED is suitable for this size. D120 is probably too big, so is there any smaller 25 x 3W or 36 x 3w led light out there (like D120). Or is D120 ok for this tank?

What do you suggest?


:idea:

There is a nice 72w Cree light made by Greensun with a smaller footprint. I cannot link to it, but google it. Reefbreeders also sells it.

 

[Viperboy213]

So I am ordering my light today which will be a D120 ... link is here:

http://www.aliexpress.com/item/Free...ED-aquarium-light-with-63B-56W/587062331.html

My questions are:

1. I have a 40B with a canopy that will allow me to mount them fairly high, do I go with 90 or 120 optics?

2. It sounds like it, but will 1 unit be able to cover the spread on a 40B? I want to avoid spotlighting.

3. I have always liked the 20K XM bulb look and noticed this lets you customize you LED, but I have no idea where to start and wondered if anyone had one already made that I could just sent them so I could order this today. I know I want to incorporate some Violet and Red since that seems to be the consensus now.

Bhazard help!

 

[Markbb]

IT2040 Color map

IT2040 Color map

After being so happy with the D120 I ordered I just bought a couple of IT2040's. Using the color map below which is BHazards base plan with the addition of a couple of reds and greens. Will post some pics when I get things up and running.

Mark

1 2 3 4 5 6 7 8 9 10 11
35K 450 520 450 35K 470 35K 450 Red 450 35K
450 65K 470 65K 450 65K 450 65K 470 65K 450
65K 470 420 450 420 470 420 450 420 470 35K
450 65K 470 65K 450 65K 450 65K 470 65K 450
35K 450 Red 450 35K 470 35K 450 520 450 35K

 

[willj]

Folks, I am trying to make a decision between these two:

Two of these SD Intelligent LED Aquarium Lights:
http://www.ledaquagrow.com/en-view-cp403.html

Ive been looking at one of those for a while now, I have a quote, but I want to customize the colors

They seem to claim their whites are: 10k,12k, 14K, and 18k. Those are pretty cool ranges for whites or am I missing something?

 

[bhazard451]

So I am ordering my light today which will be a D120 ... link is here:

http://www.aliexpress.com/item/Free...ED-aquarium-light-with-63B-56W/587062331.html

My questions are:

1. I have a 40B with a canopy that will allow me to mount them fairly high, do I go with 90 or 120 optics?

2. It sounds like it, but will 1 unit be able to cover the spread on a 40B? I want to avoid spotlighting.

3. I have always liked the 20K XM bulb look and noticed this lets you customize you LED, but I have no idea where to start and wondered if anyone had one already made that I could just sent them so I could order this today. I know I want to incorporate some Violet and Red since that seems to be the consensus now.

Bhazard help!

Canopy.. go with no optics to cover the spread

I have no idea how to recreate the 20k look, but the general idea would be to use a ton of blue. At least 2:1, more likely 3:1 blue to white. This is a general statement, as leds vary per company. With Evergrow I'd say 3:1 blue to white.

 

[oscar]

so you would recommend using optics if not using a canopy?

 

[bhazard451]

so you would recommend using optics if not using a canopy?

Highly recommend it to focus the light into the tank. In a canopy, the light is reflected back into the tank. Without a canopy, the light would spill outside the tank due to the led angle unless you placed it very close to the water line. Use optics if you hang it 6" or more.