chinese led lights

[TropTrea]

O and yea an accurate pic of what the 30 to 25 ratio lookslike would be awesome and helpful!

Cause you and ianwraab have the same unit with the same ratio but in his pics it looks more on the blue side and in yours it looks more white then his did and I know its just the pictures

An accurate color picture is a near imposibility. Even taken with the same camera can create different looks from the same picture. Digitals are especialy variable that way. With a digital calmera you have a color balance based on the type of the color sensors they use to capture the image. Then some camera have color balance selection that allows you to mannualy adjust the red - cyan balance, green-violet balance, blue-yellow balance. Other cameras do this automaticly. Then there is the colorection software that is also used to balance a picture between black and pure white.

When I took pictures of my tank they always apperared much bluer in the raw mode than what the eye sees. Then when I do a neutral blue balance the blueness vanishes competly. some cameras automaticly correct for this at different ratios.

Also remember when you see nature photographs of corals in the wild these are usualy done with extremly high powered strobe lights. Without them if the picture were done at any ocean dept it would appear extremly blue and the exposure time would very long showing a lot of motion blurring. Very few people would want there tank looking like the ocean at a 100 feet deep.

 

[jfeva0049]

Just ordered 2x A6 units. 72 LED's in each unit, so I went with 36blue/30white/6uv.
Coming from ati t5's, had to get the uv's!

Here's the link, with 90° optics. What do you guys think? Great price on them

http://www.aliexpress.com/store/317...A6-led-aquarium-light-36blue-30white-6uv.html

have you got your A6's yet??? i would love to hear what you think and see them if possible, im thinking about getting 2 as well. thanks.

 

[TropTrea]

I'm looking for LED actintic lights. Can anyone know where I can get them?

Atinic lights are basicly a cautch all for blue dominant lighting. They fall in two general groups for florescent light.

420 nm Atinics which have a peak frequency of 420 nm and a range of usualy 400 nm to about 480 nm.

460 nm Atinic lights which peak at 460 nm and have a range of about 410 nm to 520 nm.

The 460's appear brighter because the eye is more sensative to the truer blue at about 475 nm than to the near UV light in the 420 nm range.

With LED's Cree makes a 455 nm Royal Blue and a 475 nm Blue LED. neither of these LED's produce a substantial amunt of light bleow 400 nm. They also make special dental and medical LED's in the 400 to 380 nm range but these are usualy so high priced that they are not practical for aquarium usage. Also Philips makes a near UV led that peaks around 415 mv and looks very purple. Bridglux sells a 420 nm Violet LED, and a pink which is a combination of 450 nm blue and 600 nm red. (red and blue = red-violet to the eye often called pink)

If you want to duplicate the florescent Atinic look then a combination of Royal Blue, Blue, and few sparing Violet LED's in combination would do this. More Royal Blues would look closer to the 420 Aticic bulbs and more Blues closer to the 460 nm atinic bulbs.

 

[RDHDDRAGON]

Just a quick led update: (Original posts on pages 2 and 3)

Well it has been a year now since we installed the leds. I had had a few people ask how
par did in that time frame and i was curious myself. Borrowed a par meter and i am still happy with the readings!

Just under top of water par went from 880 to 700 and at the bottome it went from 180 to 130. So there was loss, but i expected that. Still great readings!

 

[Travis1787]

I'm so close to ordering my light! Got my ratio I want figured out and just to be sure

My tank is 24"tall and 18" wide so I want no lenses correctl? Which would give me 120 degree spread?
And that's all right? Or do I need to ask for optics or no optics?

 

[Chromey316]

120' All the way

4 days now And my corals LOVE the new lights, Everything is almost bouncing.

 

[customreefer]

have you got your A6's yet??? i would love to hear what you think and see them if possible, im thinking about getting 2 as well. thanks.

Just spoke to Hendy, shipping out tomorrow, then 7 business days shipping. Since mine were custom built with the uv's it took a little longer to make them. Rest assured I will be posting pics of these fixtures in action!

 

[Travis1787]

So 120 optics and lense? Or just one or the other?

 

[bhazard451]

Just got an update. My light is shipping today!

They updated the design. The one in the pics right now is a testing sample. The final NOVA A4 being shipped has two notable differences,

1. There are no dedicated on/off switches. The lights can be turned off by the dimmer switches now.

2. The power cords come out of the top of the units instead of the sides.

Here are the pics sent from the factory itself.

24 Blue

24 White

Both

Top

Under

Side

I can't wait to get it set up! Looks bright as hell.

 

[dbmet]

That looks sweeet!!!
d

Just got an update. My light is shipping today!

They updated the design. The one in the pics right now is a testing sample. The final NOVA A4 being shipped has two notable differences,

1. There are no dedicated on/off switches. The lights can be turned off by the dimmer switches now.

2. The power cords come out of the top of the units instead of the sides.

Here are the pics sent from the factory itself.

24 Blue

24 White

Both

Top

Under

Side

I can't wait to get it set up! Looks bright as hell.

 

[bhazard451]

I honestly don't think I could have made my own DIY fixture with the same quality for the price. Communication has been great too.

It's been a very good experience so far. Customer service has been excellent compared to some shady companies like Aqua Traders here in the states. I would buy from Sam and Evergrow again anyday.

 

[dbmet]

I agree. Sam is great. Look forward to pics when it arrives!!!

 

[WinnipegDragon]

I just got the same email and pics. My light is also shipping today so I'm stoked.

I plan to crack the case first thing and see what drivers they are using. I'm hoping to bypass the pots entirely and run them through my Apex. Hope the drivers are compatible.

 

[Travis1787]

Yea sam is patient man haha I have been such a pain in the azz no joke I'm sooo picky with what I want the ratio I came up with is different from anyone listed on here haha let's hope its what I want!

 

[bhazard451]

I just got the same email and pics. My light is also shipping today so I'm stoked.

I plan to crack the case first thing and see what drivers they are using. I'm hoping to bypass the pots entirely and run them through my Apex. Hope the drivers are compatible.

If not the Apex, I'm thinking of doing the same thing with an Arduino controller (Typhon). Should still be under $300 for everything once installed. I'm hoping the drivers work myself.

 

[feersomen]

I just received my set of LED's from china...Its not a model i've seen on this thread so wanted to share.


77w X 3w. These are 30" long, they have a great optic on them for great penetration. They were extremely well made and i'm extremely happy with the coverage and color with mine.

The coral 'pop' is amazing!

Check out the pictures here....(didn't know the best way to get them posted)

http://imgur.com/a/kFzRG#7ptIo

 

[sajihassan]

Which brand or any link for the chinese led.

 

[Browserz]

feersomen which fixture did you buy? Link?
they look pretty cool

 

[Trevenator]

I just got the same email and pics. My light is also shipping today so I'm stoked.

I plan to crack the case first thing and see what drivers they are using. I'm hoping to bypass the pots entirely and run them through my Apex. Hope the drivers are compatible.

Let me know how it turns out.
I would love to be able to dim them with my Apex Jr

 

[St.Pete_Reefer]

Chromey, the picture of your fixture on Imageshack does not have Optics on them, is this what you are referring to, or are you using a different set of fixtures that are not in the photo set? That is just a piece of glass over the diode with NO lens in at all. That is strictly to protect the Diode itself not provide a direction for the light to beam down. Just an FYI, if they sold you those and said they had optics they sent you the wrong lights.

Here is a link for LED's with Optics on them.

http://www.aliexpress.com/product-g...th-lenses-Dropship-available-wholesalers.html

This is a really good price for what the unit has to offer. Just the LED's themselves are around lets say $3 bucks each if you are lucky and X that by 55 of them = $165 just in LED's nothing else.

This unit dims, uses brand name LED's, Has optics, Dual controller, etc.

This is hands down a steal. I'm wholesale in the car led world so I will see if they might do a break on around 5+ units to see what pricing would be then. :thumbsup:

Awesome thread.