Chinese LED Lights

rayr18 said:
No I don't believe they are true UV..They emit at 425 nm so they are violet.
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rayr18 said:
Not an expert by any means, but true UV 's are not very efficient from what I read.
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When I got my EverGrow fixtures, back in Dec 2012, the "UV" was listed as 410nm-420nm. And Bridgelux had been having serious issues with UV leds turning black. They weren't burning out, they were burning the led cap lens. EG told me that Bridgelux had fixed the problem, but they couldn't 100% guarantee that I would get the new UV bulbs. So I ordered lots of extra leds with mine and haven't had to replace any so far.

Maybe Bridgelux shifted the 'UV' led spectrum from 410nm to 425nm? I don't know. But I'll ask.

I don't know what you mean by,"true UV 's are not very efficient..." If you mean they aren't very bright? That's because our eyes don't see at UV wave lengths. They look dim because they are making light the coral can use, but our eyes don't.
 
E_rock said:
But has anyone ever controled one of these fixtures on a reef angel controller or an adrunio based one? Thanks.
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I believe 'bhazard451' has them on a reef angel... He had a thread about reefbreeders LEDs
 
Ron Reefman said:
When I got my EverGrow fixtures, back in Dec 2012, the "UV" was listed as 410nm-420nm. And Bridgelux had been having serious issues with UV leds turning black. They weren't burning out, they were burning the led cap lens. EG told me that Bridgelux had fixed the problem, but they couldn't 100% guarantee that I would get the new UV bulbs. So I ordered lots of extra leds with mine and haven't had to replace any so far.

Maybe Bridgelux shifted the 'UV' led spectrum from 410nm to 425nm? I don't know. But I'll ask.

I don't know what you mean by,"true UV 's are not very efficient..." If you mean they aren't very bright? That's because our eyes don't see at UV wave lengths. They look dim because they are making light the coral can use, but our eyes don't.
Click to expand...

The 410nm diodes were not very bright, and they had a high failure rate- the LED would melt the acrylic lense, and block its self out, so a 420nm diode was found, that lasts longer, and puts out more light.
 
i have been running my 2 Chinese leds that i bought on AM!@#. and i am a believer everything is growing and multiplying i have a 120gal mix reef and boy am i happy with them i will post new pics of the aquarium later but if someone is skeptical jump on the ban wagon love it:dance:
 
Ron Reefman said:
When I got my EverGrow fixtures, back in Dec 2012, the "UV" was listed as 410nm-420nm. And Bridgelux had been having serious issues with UV leds turning black. They weren't burning out, they were burning the led cap lens. EG told me that Bridgelux had fixed the problem, but they couldn't 100% guarantee that I would get the new UV bulbs. So I ordered lots of extra leds with mine and haven't had to replace any so far.

Maybe Bridgelux shifted the 'UV' led spectrum from 410nm to 425nm? I don't know. But I'll ask.

I don't know what you mean by,"true UV 's are not very efficient..." If you mean they aren't very bright? That's because our eyes don't see at UV wave lengths. They look dim because they are making light the coral can use, but our eyes don't.
Click to expand...

Ron, not to argue with you, just wanted to point something out:
Bridgelux DOES NOT make violet chips. They specialize in white led arrays that are high in power and efficiency, and also have a line of blues. Look up, "BXRA-40E4000" and you'll see what I mean.
Manufacturers claiming to use Bridgelux chips for colors other than blue and white are not actually using Bridgelux chips. The blues also tend to be quite rare.
 
asid61 said:
Ron, not to argue with you, just wanted to point something out:
Bridgelux DOES NOT make violet chips. They specialize in white led arrays that are high in power and efficiency, and also have a line of blues. Look up, "BXRA-40E4000" and you'll see what I mean.
Manufacturers claiming to use Bridgelux chips for colors other than blue and white are not actually using Bridgelux chips. The blues also tend to be quite rare.
Click to expand...

When did I ever say Bridgelux made violet chips? And what exactly do you mean when you say "chip"? Are you saying Bridgelux doesn't sell a Bridgelux 410nm or 420nm led?
 
Ron Reefman said:
When did I ever say Bridgelux made violet chips? And what exactly do you mean when you say "chip"? Are you saying Bridgelux doesn't sell a Bridgelux 410nm or 420nm led?
Click to expand...

You said in your post that Bridgelux was fixing problems with the violet chips. That implies they make violet leds.

They do not. Bridgelux has a line of blues, ranging from 445-460nm however.
You can find the datasheets at bridgelux.com.
Now, many leds are labeled under the name "bridgelux" and sold like that, even though they are, technically, not bridgelux. This matters because the Bridgelux company should not have their name on leds that are not theirs, and also because the efficiencies of a true Bridgelux vs. a clone can be vastly different.

When I say "chip", I mean led; specifically, the part that emits light.
 
I have looked through the entire thread on these lights and decided to go with the reefbreeders. I am caught between purchasing their already set fixture or have them customize the fixtures for me.

Here are the dimension on my tank and the type of live stock. The tank is a Marineland 150 DD (36x36x27) and it will be a mix reef of SPS, LPS and fishes.
 
What would be the best for a 72x18x28. Will be a FOWL first and grow into simple corals. Nothing exotic as I don't want the maintenance.

I would like them to be dimable.

Thanks
 
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