How many violets ?

[Reefkid88]

I'm going to be making a new light using a custom made 10"x4.5" heatsink using 2 NanoBox 11up boards...

 

Question is,what would be a good number of hyper violets from LGB would be good: 2,4,6,8 ?!

[gus6464]

Why not just get 1 or possibly 2 4-up violets from reefll?

 

http://reefll.com/index.php?route=product/product&path=59_63&product_id=58

 

You can use the lgb xm-l optics if you need them. Although since your light is small 1 reefll 4-up is more than enough between the two 11up boards.

[Horerczy]

What size tank is this going on?

[Reefkid88]

What size tank is this going on?

10"x10"x11" cube. I'm thinking about using my 3 semileds I have and just using those 3 between your boards I'm getting.

 

Why not just get 1 or possibly 2 4-up violets from reefll?

 

http://reefll.com/index.php?route=product/product&path=59_63&product_id=58

 

You can use the lgb xm-l optics if you need them. Although since your light is small 1 reefll 4-up is more than enough between the two 11up boards.

Trying to keep it in the country to keep shipping costs down. That's a good idea though. If I don't use my 3 I already have I'll go with possibly LGB hyper violets.

[Horerczy]

Just the semi's would prob be enough for that tank especially with the 11up boards.

[Reefkid88]

Just the semi's would prob be enough for that tank especially with the 11up boards.

How much better are the LGB hyper's than the Semi's ?

[Horerczy]

Depends on where you get the semis from.

 

Reefll's 4 core SemiLEDs violet is the more efficient than LGB's violets but LGB's violets are more efficient than RapidLEDs Semis are.

 

Luxeon are between LGB and Reefll in efficiency but they're really expensive right now.

[Reefkid88]

Depends on where you get the semis from.

 

Reefll's 4 core SemiLEDs violet is the more efficient than LGB's violets but LGB's violets are more efficient than RapidLEDs Semis are.

 

Luxeon are between LGB and Reefll in efficiency but they're really expensive right now.

Oh okay. I have rapid' right now. I was thinking maybe getting one of their quad core violets but $21 is hard to swallow for one.

[jedimasterben]

Especially with how abysmal their output is.

[Horerczy]

Oh okay. I have rapid' right now. I was thinking maybe getting one of their quad core violets but $21 is hard to swallow for one.

the quad that rapid sells isn't that much better really. if at all.

 

The quad reefll has is a lot better but it's got a hefty shipping tag attached as well. Not reeflls fault though, shipping to the us from hong kong is just ridiculous.

[jedimasterben]

In my tests, I don't think that the ReffLL chips are any better than the LEDgroupbuy hyper violet per chip. They've got the edge over the 405nm chips, but not the 430nm.

[Horerczy]

My math indicated similar results. A couple percent difference in theoretical efficiency.

 

Just have to ask yourself if the difference in efficiency is worth the difference in price tag.

[Reefkid88]

In my tests, I don't think that the ReffLL chips are any better than the LEDgroupbuy hyper violet per chip. They've got the edge over the 405nm chips, but not the 430nm.

I'm probably going go with LGB's hyper. I may just get 2 and see how I like 2and go from there. They'll be on their own channel of course. So we'll see.

 

I looked into reefll's leds before,but shipping is fu*king outrageous. For a build my size,I don't consider it worth seeming all the options we have state side.

[Reefkid88]

I have the 410 violets now,from what I can remember.

 

I'm thinking maybe grabbing a lime too. Maybe playing the lime in the middle of the hyper violets ? This is something else I've been debating too

[DNK]

I looked into reefll's leds before,but shipping is fu*king outrageous.

If you would like to get cheap shipping, we can send our components via very cheap China post. For few pieces of 4-core LEDs cost of shipping will be 2USD. But delivery time will be long, sorry.

 

If cheap shipping is important for you, please write me to the PM.

[Reefkid88]

If you would like to get cheap shipping, we can send our components via very cheap China post. For few pieces of 4-core LEDs cost of shipping will be 2USD. But delivery time will be long, sorry.

 

If cheap shipping is important for you, please write me to the PM.

Thank you for the offer. It's a kind gesture.

 

But comparing Rapid's quad core to your guys,it's virtually the same "led" besides the fact that you're able to drive yours at 1000mA instead of 700mA like most UV's.

[jedimasterben]

The same LED? Hardly. The Rapid quad violet at 350mA has less flux than a single LEDgeoupbuy violet at 700mA, much less reffLL's quad violet.

[Reefkid88]

The same LED? Hardly. The Rapid quad violet at 350mA has less flux than a single LEDgeoupbuy violet at 700mA, much less reffLL's quad violet.

I was ony speaking spectral wise,that's all. I'd much rather spend $5-$10 extra dollars and go with 4 single hyper's from LGB and spread them out and put them where I feel is necessary,than spend upwards of $100 for 4 quad violets.

[Paleoreef103]

I was ony speaking spectral wise,that's all. I'd much rather spend $5-$10 extra dollars and go with 4 single hyper's from LGB and spread them out and put them where I feel is necessary,than spend upwards of $100 for 4 quad violets.

So wait, you're using 2 11-Ups and 4 HVs over a 10X11X11" tank? You're not messing around, are you? Honestly, 1 11-up, 2 HVs and a lime would put you in the "keep anything you want top to bottom" category.

[Reefkid88]

So wait, you're using 2 11-Ups and 4 HVs over a 10X11X11" tank? You're not messing around, are you? Honestly, 1 11-up, 2 HVs and a lime would put you in the "keep anything you want top to bottom" category.

Correct. And no,that's one thing I never short my tank on is light. Subsequently enough,I'm moving within the next few months and may or may not upgrade to a slightly larger tank. But,also full controllability of the light is a must. Which I'll have.

 

I'd rather have too much light and have to turn it down,than cut myself short and have to redo my whole light eventually. Making things 10x harder on myself and leaving coral without light due to a upgrading of the light.

[DNK]

I should make some explanations. First of all I'd like to say - this is NOT same LEDs, because:

1. Our LED have on 350mA current a 2150mW radiation power instead of RapidLED have only 850mW.

2. Our LED have a three different wavelength LEDs instead RapidLED only two. BTW, I see "joke" in this case in RapidLED description of their LED: "Total Spectrum" - where is "total"? I don't know.

3. Our LED is soldered to special SinkPAD MCPCB, so we allow use it in current up to 1000mA, instead of RapidLED only 700mA.

 

Let's summarise points 1 and 2 we will see very interesting picture. Please check my simple calculations. Let's calculate how much will cost 5800mWt of radiation power from our LED and RapidLED. In case of our LED it should be only one LED, so you should pay only 29USD. Radiation power on 700mA is higher than on 350ma is approximately in 1.95 times, so LED from RapidLED will radiate on 700mA current a 850*1.95=1658mWt. So, to achieve 5800mW you should buy 5800/1658=3.5pcs, it is mean 4pcs and you should pay 4*20=80USD. In short words, RapidLED product have a cost 80/29=2.8 times more than our. It's very pricey, isn't it?

 

BTW, Semileds has manufactured the violet LEDs for this 4up LED ONLY with binning 5nm. So, description of RapidLED have a mistake - please check: "Two chips with 400-410nm wavelength and two chips with 410-420nm"

 

To be honest, most of LED seller is very thoughtlessly use such critical important parameter as "bin". At least one well known seller are sells nonexistent in nature LEDs, because he indicated in the item description complete bullshit instead of bins.

[Reefkid88]

I should make some explanations. First of all I'd like to say - this is NOT same LEDs, because:

1. Our LED have on 350mA current a 2150mW radiation power instead of RapidLED have only 850mW.

2. Our LED have a three different wavelength LEDs instead RapidLED only two. BTW, I see "joke" in this case in RapidLED description of their LED: "Total Spectrum" - where is "total"? I don't know.

3. Our LED is soldered to special SinkPAD MCPCB, so we allow use it in current up to 1000mA, instead of RapidLED only 700mA.

 

Let's summarise points 1 and 2 we will see very interesting picture. Please check my simple calculations. Let's calculate how much will cost 5800mWt of radiation power from our LED and RapidLED. In case of our LED it should be only one LED, so you should pay only 29USD. Radiation power on 700mA is higher than on 350ma is approximately in 1.95 times, so LED from RapidLED will radiate on 700mA current a 850*1.95=1658mWt. So, to achieve 5800mW you should buy 5800/1658=3.5pcs, it is mean 4pcs and you should pay 4*20=80USD. In short words, RapidLED product have a cost 80/29=2.8 times more than our. It's very pricey, isn't it?

 

BTW, Semileds has manufactured the violet LEDs for this 4up LED ONLY with binning 5nm. So, description of RapidLED have a mistake - please check: "Two chips with 400-410nm wavelength and two chips with 410-420nm"

 

To be honest, most of LED seller is very thoughtlessly use such critical important parameter as "bin". At least one well known seller are sells nonexistent in nature LEDs, because he indicated in the item description complete bullshit instead of bins.

I think you were certainly misconstruing what I was saying in "the same". I even stated in my response to what Ben was saying that I was referring to the SPECTRAL range of the leds. Not that the leds,performance,power,star was the same. Nor was I comparing theirs with yours or any other manufacture in that nature.

 

Sorry if you misunderstood what I was trying to say. And secondly,the cost of the quad cores would be $21x4 + $7 for shipping. Which is a grand total of $91 which is way more than I want to spend on violets. When I can cut my losses and order 2-4 LGB hyper violets in the 430 spectrum and perfect for my needs. At only $10 for 2.

[DNK]

OK, sorry for misunderstanding.

 

But I should emphasize - using of 430nm violets is near to useless, because this wavelength is working similar as usual Royal Blue with wavelength near to 450nm. To achieving benefits of violet part of spectrum you should use 400-420nm LEDs.

[jedimasterben]

But I should emphasize - using of 430nm violets is near to useless, because this wavelength is working similar as usual Royal Blue with wavelength near to 450nm. To achieving benefits of violet part of spectrum you should use 400-420nm LEDs.

430nm is nothing like 450nm, or even 440nm.

[Reefkid88]

430nm is nothing like 450nm, or even 440nm.

Holy sh*t are we almost in agreeance Ben hahaha.