chinese led lights

[bhazard451]

Originally Posted by Chicago

Thanks. But I recently read. The reds and green not useful for reef tank

I wouldn't say not useful, I would say more toward not needed if running a good blue:white spectrum.

[Chicago]

Thanks. So does sam build with cres led?

[bhazard451]

Originally Posted by Chicago

Thanks. So does sam build with cres led?

Different fixture

http://www.aliexpress.com/store/3178...th-dimmer.html

[Travis1787]

Originally Posted by ihigh

I wanted to ask you how do you like your configuration and is this

http://www.aliexpress.com/store/3178...d-27white.html

the exact same of what you ordered? I wanted to ask you could you give me a quick explanation of what the violets do as opposed to just a blue/white combo? I was reading through it all but 70+ pages is giving me a headache..lol

No that's not what I got. Same unit but not that ratio I got a ratio of 30 blues 21 whites 4 violets. I'm very happy with it.

From what I've gather the violets just bring out more of your pink and red colors in your corals. Too many though and it could make it too purple of a look mine are the 440 nms not the 400 nms and I only got 4 and personally 4 is the most id do in the 55 led unit. It depends on what kinda look you like personally. I personally don't like any of the ratio up on ali express there all to white .... But thats my taste I would be a 2 blue to 1 white ratio to my taste. My ratio I have now is more like a 1.5 blu to 1 white ratio. I think if I could do it again id do 34 blue 17 whites and 4 violets. Or a 33 blue and 18 white 4 violets. but once again that's my taste you might not like that

[radbluesfan]

Originally Posted by Travis1787

No that's not what I got. Same unit but not that ratio I got a ratio of 30 blues 21 whites 4 violets. I'm very happy with it.

From what I've gather the violets just bring out more of your pink and red colors in your corals. Too many though and it could make it too purple of a look mine are the 440 nms not the 400 nms and I only got 4 and personally 4 is the most id do in the 55 led unit. It depends on what kinda look you like personally. I personally don't like any of the ratio up on ali express there all to white .... But thats my taste I would be a 2 blue to 1 white ratio to my taste. My ratio I have now is more like a 1.5 blu to 1 white ratio. I think if I could do it again id do 34 blue 17 whites and 4 violets. Or a 33 blue and 18 white 4 violets. but once again that's my taste you might not like that

I agree with Travis's color combos above if I had to go back again and do it over. I think people equate the whites with how bright their tank will be. Whites are very strong and will overpower the blues at a 1:1 ratio. Something closer to 2:1 with a couple violets would be my choice for the future. IMO.

[Chicago]

So ubguys would not add uv. Just a few violates?

[Chicago]

Wh makes these. http://item.mobileweb.ebay.com/viewi...d=260820599663

[Travis1787]

To be honest I really don't know how different the violets and uvs are I believe the uvs are more towards a 400nm and are more pink then the violets 440s which are more purple. I could tell which is better or worse I do know the led genuis username troptrea he led me more towards the 440s

[radbluesfan]

I don't have personal experience with UV but feedback that I have READ about it suggests too much pink. Like I said before, the color combo Travis posted a few replies earlier is what I would do. I have 6 violets in each of my 48 LED lights and I think it is too pink and would NOT do it like that again if/when I buy lights again. Blue/white/ with no UV or violet would be better than too much UV or violet---again IMO.

[Mr Neon]

Got this from Sam today.

Any thoughts on the LED layout?

Also, what is the difference between a LED PCB Board 28:27

and (Travis) LED PCB Board 30:25?

Hello Ken,

Can do as

1st dimmer to have 17 whites/11 blues
2nd dimmer to have 23 blues/4 violets

using 28:27 LED PCB board.

OR

1st dimmer to have 17 whites/13 blues
2nd dimmer to have 21 blues/4 violets

using 30:25 LED PCB board(Travis’s)

all with 90 degree LEDs

6500k and 10000k, yes we can do it.

Three working days delivery.

Extra cost:
Violet 440nm: 0.8USD/pc or
Violet 420nm: 1USD/pc

Up to you.

14USD for DIY ratio.

Best regards,
Sam

[bhazard451]

Originally Posted by Mr Neon

Got this from Sam today.

Any thoughts on the LED layout?

Also, what is the difference between a LED PCB Board 28:27

and (Travis) LED PCB Board 30:25?

Hello Ken,

Can do as

1st dimmer to have 17 whites/11 blues
2nd dimmer to have 23 blues/4 violets

using 28:27 LED PCB board.

OR

1st dimmer to have 17 whites/13 blues
2nd dimmer to have 21 blues/4 violets

using 30:25 LED PCB board(Travis’s)

all with 90 degree LEDs

6500k and 10000k, yes we can do it.

Three working days delivery.

Extra cost:
Violet 440nm: 0.8USD/pc or
Violet 420nm: 1USD/pc

Up to you.

14USD for DIY ratio.

Best regards,
Sam

30:25 and 28:27 is just how many leds are wired per driver/dimmer. Looks like a good ratio, as I would also have rather had more blues. I went 1:1 white:blue and whites really overpower it at 100%.

[radbluesfan]

Originally Posted by Mr Neon

Got this from Sam today.

Any thoughts on the LED layout?

Also, what is the difference between a LED PCB Board 28:27

and (Travis) LED PCB Board 30:25?

Hello Ken,

Can do as

1st dimmer to have 17 whites/11 blues
2nd dimmer to have 23 blues/4 violets

using 28:27 LED PCB board.

OR

1st dimmer to have 17 whites/13 blues
2nd dimmer to have 21 blues/4 violets

using 30:25 LED PCB board(Travis’s)

all with 90 degree LEDs

6500k and 10000k, yes we can do it.

Three working days delivery.

Extra cost:
Violet 440nm: 0.8USD/pc or
Violet 420nm: 1USD/pc

Up to you.

14USD for DIY ratio.

Best regards,
Sam

PCB board means how many lights on each circuit (plug) ---I assume after doing the math. Both the configurations are great and I really do not think you would be able to tell a difference between the two as they are nearly identical (two blue LEDs).
440nm=more purple, 420nm=more pink--personally I like the 440 more. Go for it!!!

[Travis1787]

That should be a perfect ratio man.... I wish pics worked better on these units so I could see it compared to mine.

I got 30 blues 21 whites 4 violets and I'm happy with it but if I could do it again id deff go a tad bluer and your ratio like exactly what id do 34 blues 17 whites 4 violets (440nm)

In fact what I upgrade to my 120 I planned on getting a matching unit but I'm highly considering getting two new units with that ratio and selling mine. But icant complain about mine so far I love it

[bhazard451]

My new drivers should be arriving this week. I'll update with pics/experiences if I get sunrise/sunset working through my apex. Leds will be brighter too, being driven at a higher current, 650 mah compared to 580.

[Mr Neon]

Thanks for the input.

I am waiting a price from Sam before I pull the trigger.

I hope this works on my 65 gallon! I only used MH and T5's so this for me is a big step with the corals. I looked at Raidons, AI Vega (who knows when it will be ready) AI sole, Reef brites, Tru Lumens, etc...

Although controlling the dimming via an APEX controller is cool and the idea of doing a sunrise/sunset, I felt that the novelty would wear off eventually to have so much adjustable range other than dimming. How many scenarios can you possible use on a reef tank??? Price is a factor too. I don't mind spending the amount to try these lights as opposed to the other brands and their prices. The break even point is greater for those LED's, plus in a couple years the technology should be much better and hopefully the LED lights bought are still usable.

I like the idea of the keep is simple principle!

[Travis1787]

I'm tellin ya I have a 65 also its 36x18x24tall .... Its works great and I went from a 250 mh to this and love it lights up the tank fully

[sfbayview]

I would think that a 2/1 blue/white ratio would be perfect with some floro supplements

Here are some pics of my 120w xen lux 1rst gen bridgleux early 2011 10k 1:1 1w; Grows coral and algae very well (toasted my bubble tip) :P in my 30; Just moved the light and stock from my 30 to the 120.
purple+ artinic t8

purple+ artinic t8 + 1 120w 1w xen lux

t5HO 2blue 1purple 1 artinic; need to get a blue + or 10k

[xfactor1315]

Originally Posted by ihigh

What would some of you guys get for a 75g 4foot wide tank? I wanted to get optimal growth on the corals (mainly lps and zoas/softies). I wanted to use a d120 since it seems to be the cheapest path, but I'm not sure on the color combo and who's the most reputable to order from

I'm in the same situation, how many units would be needed for a 75 and how far above the water would it have to be mounted?

[radbluesfan]

If nothing else, I will keep using these lights until:
A. I upgrade to something larger or
B. Competition and technology even out so that the higher end stuff goes way down in price.

I cannot see how one light is $750 and another is $165. Sure there are extra features but $600 dollars worth----I just don't see it.

[bhazard451]

Originally Posted by Chicago

Wh makes these. http://item.mobileweb.ebay.com/viewi...d=260820599663

You don't want 1w leds.

[bhazard451]

Originally Posted by radbluesfan

If nothing else, I will keep using these lights until:
A. I upgrade to something larger or
B. Competition and technology even out so that the higher end stuff goes way down in price.

I cannot see how one light is $750 and another is $165. Sure there are extra features but $600 dollars worth----I just don't see it.

My thoughts exactly.

The new Cree XT-E leds are already more powerful and cost less than the previous generation of XP-G/XP-E leds. I can't see committing to such a high priced light when cheaper alternatives are available.

[bhazard451]

Don't forget, that's the shipped price. About $55 is built into the price for the shipping cost. The light itself ends up being $110.

[G x 2]

Originally Posted by bhazard451

http://www.aliexpress.com/store/3178...-25-white.html

Sam's email: sales02@ledgrowlights.cn

bhazard & Travis: How many units would you recommend for a 180g (75X24X24)? I was thinking of getting 3 and space them with equal distances. Now I'm second guessing myself and thinking I should just do 4 to be on the safe side. What do you think?

[Travis1787]

Originally Posted by xfactor1315

I'm in the same situation, how many units would be needed for a 75 and how far above the water would it have to be mounted?

2 d120s will be pleanty of light for both of your guys 75 gallon tanks.

id say somewhere be 8"-15" mines at 9 id prefer more like 10" or 12" but mines in a canopy and 9 was the best I could get it. And color combo is based off your preference. What kinda look do you like?

[bhazard451]

Each fixture can cover about 24" of length. Start with 3 for a 75 incher, and add another if it isn't enough.