chinese led lights

[phragger]

Since we're talking colors, I have something I've been wondering. 6500K, which is a daylight white, looks yellow in aquarium water and needs actinics to balance out the look. 3500K has a yellow hue. In the aquarium, won't it be significantly more yellow requiring much more blues to balance it out?

[bhazard451]

Originally Posted by phragger

Since we're talking colors, I have something I've been wondering. 6500K, which is a daylight white, looks yellow in aquarium water and needs actinics to balance out the look. 3500K has a yellow hue. In the aquarium, won't it be significantly more yellow requiring much more blues to balance it out?

Color Temp Labels like 6500k are actually meaningless. It is the actual spectrum that the led is putting out that is key. Usually there are datasheets that show this. I'll have to request them. I did this based on theory, and it worked out.

3500k and 6500k sound like they would look like bright urine if the white channel was on 100% and blue off. The 3500k leds definitely look yellow on the fixture.

In actuality, the mixture of 3500k and 6500k looks less visually yellow than the 10k leds alone did on my Nova, although I have violets on the same channel and it may be affecting it. It actually retains more of a "white/yellow" look.

[Snausy]

Originally Posted by bhazard451

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....

This is my thought exactly. I'm going to have four of them up there and it would be VERY NICE if they all changed with one remote exactly the same. Is it IR or RF? I'm assuming RF because if they are in a canopy you have no sightline. In which case they should all change with one remote. I'd like to confirm that

[bhazard451]

IR. If you point the remote away from the fixture, it doesn't do anything. You need line of sight.

RF to control multiple units could be nice in a future revision.

Sent from my SGH-T999 using Tapatalk 2

[03sonicstang]

I'm getting ready to order (3) IT2040 Units today. I want the lights to be approximately 12-15K when everything is on and still simulate the dawn/dust and high noon using the (2) Dimmers. Any suggestions and/or comments would be greatly appreciated!

Thanks
Tom

[bhazard451]

Originally Posted by 03sonicstang

I'm getting ready to order (3) IT2040 Units today. I want the lights to be approximately 12-15K when everything is on and still simulate the dawn/dust and high noon using the (2) Dimmers. Any suggestions and/or comments would be greatly appreciated!

Thanks
Tom

Use 450nm instead of 440 and 460. Use close to a 2:1 blue to neutral/warm white ratio. You have too many whites. 660nm red is more effective than 630.

[schulzcm]

bhazard, what do you think of this layout. I know you don't know the actual spectrum of the whites but what do you think of using 3700k, 4100k and 6500k?

would you have used the 4100k if you knew they were available? and i saw you said you would get rid of the higher k whites so that is what i did. should I add more 3700k?

oh and yeah I dont need the moonlights so I stuck the violets on there. thought maybe I could run them at close to 100% since i know they get overpowered by the other leds.

thanks!

[bhazard451]

Originally Posted by schulzcm

bhazard, what do you think of this layout. I know you don't know the actual spectrum of the whites but what do you think of using 3700k, 4100k and 6500k?

would you have used the 4100k if you knew they were available? and i saw you said you would get rid of the higher k whites so that is what i did. should I add more 3700k?

oh and yeah I dont need the moonlights so I stuck the violets on there. thought maybe I could run them at close to 100% since i know they get overpowered by the other leds.

thanks!

Violets on the moonlight channel wouldn't be good. The moonlight channel tops out at 10% brightness, which is very low for an already dim led like 420nm.

I might have used 4100k instead yes, but the 10k leds aren't bad. Since we don't know its spectrum yet, I didn't see the need for it with 3500k already there.

You would need to supplement with red and some form of cyan/green if you used 10k for all the whites. I'm going to test by adding cyan and red leds into my fixture eventually to see if I like the look better, even with warm whites installed.

[schulzcm]

ok, thanks for the reply. That being said do you think my mixture of whites are good or should I drop or add any?

I spoke to sunny and asked her if the moonlights could be turned on to 100%, equal to the brightness of the other two switches, and she told me yes. I will have to email her again but your unit only goes up to 10%?

[bhazard451]

Originally Posted by schulzcm

ok, thanks for the reply. That being said do you think my mixture of whites are good or should I drop or add any?

I spoke to sunny and asked her if the moonlights could be turned on to 100%, equal to the brightness of the other two switches, and she told me yes. I will have to email her again but your unit only goes up to 10%?

I'd have to check again. Visually it looks like it reaches 100%, but the other channels shut off at 10%. I guess there is something going on that allows the moonlight channel to work from 10% to 1%.

Ratio looks good to me, although it is unknown right now if 4100k or 3500k provides more usable spectrum or better visuals.

[03sonicstang]

Originally Posted by bhazard451

Use 450nm instead of 440 and 460. Use close to a 2:1 blue to neutral/warm white ratio. You have too many whites. 660nm red is more effective than 630.

Thank you for your input; I want to be sure with this an a second set of eyes is priceless....

I modified my set up to the follow. Thoughts? Thanks again
Tom

[03sonicstang]

bhazard451; how is your light set up? I see the list but no placement. It looks to me as a perfect blend of Blue with White.

Again, thank you for your time and service! I owe you beer or lunch if you're in the Detroit metro area

[bhazard451]

Originally Posted by 03sonicstang

bhazard451; how is your light set up? I see the list but no placement. It looks to me as a perfect blend of Blue with White.

Again, thank you for your time and service! I owe you beer or lunch if you're in the Detroit metro area

I think the ratio came out near perfect myself. There may be a little too many whites by 2 or 3 leds, but it allows a nice high noon yet still 14k look at 100%. If you manually adjust the blues and whites, you can hit 10k/20k by lowering one of the channels.

I'll be adding in reds and cyans to test soon to see if they are needed for better visual appearance. Evergrow doesn't use Cyan so I had to get them elsewhere.

In some ways, this light and ratio looks better than my DIY Cree, and in other ways the DIY Cree looks better. I like them both.

[03sonicstang]

Man; looking at your pictures and set up I just might have to copy it!

Thanks again.......might add a couple reds but not sure

Tom

[QUOTE=bhazard451;20654948]I think the ratio came out near perfect myself. There may be a little too many whites by 2 or 3 leds, but it allows a nice high noon yet still 14k look at 100%. If you manually adjust the blues and whites, you can hit 10k/20k by lowering one of the channels.

I'll be adding in reds and cyans to test soon to see if they are needed for better visual appearance. Evergrow doesn't use Cyan so I had to get them elsewhere.

In some ways, this light and ratio looks better than my DIY Cree, and in other ways the DIY Cree looks better. I like them both.

[03sonicstang]

How many Reds and where; I'll test it for you

[david335]

Hi Bhazard451
Why don't you use just 65K instead of mixing 35K and 10K?

Sent from my SGH-T999 using Tapatalk 2

[bhazard451]

Originally Posted by david335

Hi Bhazard451
Why don't you use just 65K instead of mixing 35K and 10K?

Sent from my SGH-T999 using Tapatalk 2

The original intent was to use 3500k to provide red spectrum normally missing from cool white leds, and 6500k to provide the blue/green spectrum missing from cool white leds without needing to use red and green separate leds.

It worked, and you can definitely use a combo like this for better color compared to just cool white/royal blue, but I believe separate reds and cyans may provide that extra little kick in color to really stand out. "Disco" is reduced and only noticeable within shadowed areas inside rocks/caves without separate colored leds. Its a choice you have to make, red spots on rocks with slightly better color, or no spots with slightly less color.

Cyan and Red are the color changers in my DIY fixture. Although my DIY Cree/Luxeon fixture looks great without my red/cyan/violet string on, with the string on there is slightly more color, noticeable mostly in my zoanthids.

[Slayer311]

I'm thinking of ordering a few of these, what do you think of this layout bhazard? Going for a more 16-18k look.

[marco_1962]

Hi, ready to order an IT2040.

Now let's go with the led layout.

Sunny email me the STD layout that is what bhazard asks for his fixture

I wish mimic the Radeon look and this are her spec.

Brand	Model Color		 Temp/nm	Qti	Watt	Tot Watt
Cree	XP-G	Cool White	6500?	4	5	20
Cree	XP-E	Blue		470	4	3	12
Cree	XP-G	Royal Blue	450	5	3	15
Cree	XP-G	Green		520	2	3		6
Cree	XP-G	Red		630	2	3		6

To have the same ratio in the brand new it2040 we must have

IT 2040

Brand	       	Color	        Temp/nm	Qti	Watt	Tot Watt	
Bridgelux	Cool White	8000	18	2,2	39,6	
Bridgelux	Blue		470	12	2,2	26,4	
Bridgelux	Royal Blue	450	14	2,2	30,8	
Epistar		Green		520	4	2,2	8,8	
Epistar		Red		630	4	2,2	8,8	
Brdgelux	Royal Blue	450	3	2,2	6,6	Moonlight

I upgrade the whites to 8000k because cree cool white has a more cold spectrum than Bridgelux

Based on the bhazard451 template i do this

IT 2040 bhazard/MRC style

Brand	        Color	         Temp/nm	Qti	Watt	Tot Watt			D1	D2	D3
Bridgelux	Cool White	8000k	       12	2,2	26,4					12	
Bridgelux	Actinic		380		2	2,2	4,4					2	
Bridgelux	Violet		420		4	2,2	8,8					4	
Bridgelux	Blue		470		12	2,2	26,4						12
Bridgelux	Royal Blue	450		14	2,2	30,8					2	12
Epistar	       Green		520		4	2,2	8,8					4	
Epistar	       Red		630		4	2,2	8,8					4	
Brdgelux	Royal Blue	450		3	2,2	6,6	Moonlight	3		

I switch two Violet in 380 actinic.

Some doubts...

Actinic and violet are on only with the whites.
I think i have few Royal Blue and too much blue

What do you think about?

Thanks

Marco

[exterminatank]

Originally Posted by Slayer311

I'm thinking of ordering a few of these, what do you think of this layout bhazard? Going for a more 16-18k look.

IMO the reds, green, yellows look off balanced, unless your gonna put 2 next to each other reversed. Just my opinion though...

[bhazard451]

Originally Posted by marco_1962

Hi, ready to order an IT2040.

Now let's go with the led layout.

Sunny email me the STD layout that is what bhazard asks for his fixture

I wish mimic the Radeon look and this are her spec.

Brand	Model Color		 Temp/nm	Qti	Watt	Tot Watt
Cree	XP-G	Cool White	6500?	4	5	20
Cree	XP-E	Blue		470	4	3	12
Cree	XP-G	Royal Blue	450	5	3	15
Cree	XP-G	Green		520	2	3		6
Cree	XP-G	Red		630	2	3		6

To have the same ratio in the brand new it2040 we must have

IT 2040

Brand	       	Color	        Temp/nm	Qti	Watt	Tot Watt	
Bridgelux	Cool White	8000	18	2,2	39,6	
Bridgelux	Blue		470	12	2,2	26,4	
Bridgelux	Royal Blue	450	14	2,2	30,8	
Epistar		Green		520	4	2,2	8,8	
Epistar		Red		630	4	2,2	8,8	
Brdgelux	Royal Blue	450	3	2,2	6,6	Moonlight

I upgrade the whites to 8000k because cree cool white has a more cold spectrum than Bridgelux

Based on the bhazard451 template i do this

What do you think about?

Thanks

Marco

The Radeon does not have a very good ratio of leds. If anything, mimic the Maxspect Razor and add a few reds and maybe green (i prefer cyan). 380nm actinic seems more harmful than useful. Stick with 420nm.

You also have entirely too much cool blue, and are just adding more blue on top of it by using cool whites. You need to stay around 1:1 or 3:2 blue to white with cool whites, or it will be entirely too blue.

[Travis1787]

Ill be getting two more lights soon for my 120 upgrade ... I'd like mine to be a tad bluer prob more of a 18-20k look ...
The d120 I run now has 30 royal blues 21 whites 10k-12k i believe ..and 4 violets

I'm thinking about 35 rbs 17 whites 3 violets for this one one to get me more towards 20k .... what do you think bhaz?

[bhazard451]

Originally Posted by Slayer311

I'm thinking of ordering a few of these, what do you think of this layout bhazard? Going for a more 16-18k look.

Nothing wrong with it. Should look fine, and should be near 18k.

[bhazard451]

Got my PAR meter today too. Will try to test later.

[exterminatank]

Originally Posted by bhazard451

Got my PAR meter today too. Will try to test later.

Awsome!