chinese led lights - Page 58

Travis1787 · 05/15/2012, 07:11 AM

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

Chromey316 · 05/15/2012, 07:18 AM

2 Units for a 5' tank would be perfect, BUT get the 120' Optics, Or it might be too strong.

Travis1787 · 05/15/2012, 07:58 AM

I'm still torn on going with the norm unit from aliexpress or the A4 ...

Little more money the A4 has a better fan system for heat control and its easier to repair so when u need parts from chinatown its not so hard to fix I hear.

I know a few in here went with the A4 so make sure you get pics and reviews asap

aquaman31 · 05/15/2012, 09:54 AM

I just installed my led lights from aliexpress. This thing is bright! I'm running it at white 25% blue 40% right now to acclimate my corals and fishes. My tank is 36x20x15. As you can see there are some dark spots on the edges, but it's not running 100% yet. I will try to raise it up a little to get more spread or order another one.

jfeva0049 · 05/15/2012, 10:13 AM

Quote:

Originally Posted by aquaman31

I just installed my led lights from aliexpress. This thing is bright! I'm running it at white 25% blue 40% right now to acclimate my corals and fishes. My tank is 36x20x15. As you can see there are some dark spots on the edges, but it's not running 100% yet. I will try to raise it up a little to get more spread or order another one.

tank looks good, way to go. what optic lens are on that unit?

Travis1787 · 05/15/2012, 06:22 PM

Lookin good man! Kick them to 100 percent and show us more lol

ianrusso · 05/15/2012, 08:43 PM

Quote:

Originally Posted by Chromey316

sorry Its a 72" tank 3 units 120' optics.

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-gs...olesalers.html

Travis1787 · 05/15/2012, 09:02 PM

R optics and lenses the samething ? Cause I thought no optics was 120 degrees? Or maybe I was no lenses? And a tank 24" and lower doesn't need them and can use 120 degrees?

ianrusso · 05/15/2012, 09:13 PM

Quote:

Originally Posted by Travis1787

R optics and lenses the samething ? Cause I thought no optics was 120 degrees? Or maybe I was no lenses? And a tank 24" and lower doesn't need them and can use 120 degrees?

The optic is the overall larger casing around the diode, the lens is the insert in the middle that actually has the degree/curve on it. If you look closely on the optic you can see in the middle of the circle the lens is curved.

Msand9898 · 05/15/2012, 09:19 PM

What happens if an LED fails?
Are they individually replaceable, or do you have to buy a whole light kit all over again?

Chromey316 · 05/16/2012, 05:37 AM

I took 1 out to be sure, And it is in fact a optic, It looks like a magnifying glass when you look through it.

Im sure thiers more then 1 make or disign of optic.

WinnipegDragon · 05/16/2012, 09:29 AM

Quote:

Originally Posted by Msand9898

What happens if an LED fails?
Are they individually replaceable, or do you have to buy a whole light kit all over again?

Depends on the light. Some can be replaced modularly, and some you might need to solder a new diode on. Some might not be repairable at all. If one fails, the whole fixture should continue to work though.

jefftse · 05/16/2012, 01:20 PM

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

Chromey316 · 05/16/2012, 01:22 PM

I can clearly see where these LEDS are soldered on, So im sure if i needed to fix or change a LED it would be a snap.

regalfrank · 05/16/2012, 01:34 PM

Hi all im reading these threads in the hope of finding a led luminaire at the right price , all the links only ship to the u.s and no real findings as to which are best , or what to go for . Heres hoping for a final answer and a feasable solution
look forward to getting a ultimate decision on reliability and features

TropTrea · 05/16/2012, 01:36 PM

Quote:

Originally Posted by Travis1787

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 · 05/16/2012, 01:51 PM

Quote:

Originally Posted by customreefer

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/3178...white-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 · 05/16/2012, 01:54 PM

Quote:

Originally Posted by jefftse

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 · 05/16/2012, 04:43 PM

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 · 05/16/2012, 05:46 PM

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 · 05/16/2012, 06:17 PM

120' All the way

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

customreefer · 05/16/2012, 06:28 PM

Quote:

Originally Posted by jfeva0049

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 · 05/16/2012, 06:43 PM

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

bhazard451 · 05/16/2012, 08:09 PM

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 · 05/16/2012, 08:13 PM

That looks sweeet!!!
d

Quote:

Originally Posted by 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.

05/15/2012, 09:54 AM	#1429
aquaman31 Registered Member Join Date: Mar 2011 Location: San Ramon, CA Posts: 22	I just installed my led lights from aliexpress. This thing is bright! I'm running it at white 25% blue 40% right now to acclimate my corals and fishes. My tank is 36x20x15. As you can see there are some dark spots on the edges, but it's not running 100% yet. I will try to raise it up a little to get more spread or order another one. Last edited by aquaman31; 05/15/2012 at 10:10 AM.

05/16/2012, 01:34 PM	#1440
regalfrank Registered Member Join Date: May 2012 Posts: 9	Confused.com Hi all im reading these threads in the hope of finding a led luminaire at the right price , all the links only ship to the u.s and no real findings as to which are best , or what to go for . Heres hoping for a final answer and a feasable solution look forward to getting a ultimate decision on reliability and features

05/16/2012, 04:43 PM	#1444
RDHDDRAGON Registered Member Join Date: Nov 2009 Location: oklahoma Posts: 341	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! __________________ Salt: 220 mixed reef, 120 Agressive with volitan, triggers, and macros,155 bowfront mixed reef Fresh: 29 gal Peacock eels, 33 gal guppy love nest, 125 discus and rainbows high tech planted Current Tank Info: 10g, 29g, 29g, 55g, 155g bow reef,120g FOWLR Agressive, 125g discus, 220g reef

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05/15/2012, 07:11 AM	#1426
Travis1787 Registered Member Join Date: Feb 2010 Location: New Port Richey, FL Posts: 2,646	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

05/15/2012, 07:18 AM	#1427
Chromey316 Registered Member Join Date: Oct 2010 Location: Acton, On, Canada Posts: 179	2 Units for a 5' tank would be perfect, BUT get the 120' Optics, Or it might be too strong.

05/15/2012, 07:58 AM	#1428
Travis1787 Registered Member Join Date: Feb 2010 Location: New Port Richey, FL Posts: 2,646	I'm still torn on going with the norm unit from aliexpress or the A4 ... Little more money the A4 has a better fan system for heat control and its easier to repair so when u need parts from chinatown its not so hard to fix I hear. I know a few in here went with the A4 so make sure you get pics and reviews asap

05/15/2012, 06:22 PM	#1431
Travis1787 Registered Member Join Date: Feb 2010 Location: New Port Richey, FL Posts: 2,646	Lookin good man! Kick them to 100 percent and show us more lol

05/15/2012, 09:02 PM	#1433
Travis1787 Registered Member Join Date: Feb 2010 Location: New Port Richey, FL Posts: 2,646	R optics and lenses the samething ? Cause I thought no optics was 120 degrees? Or maybe I was no lenses? And a tank 24" and lower doesn't need them and can use 120 degrees?

05/15/2012, 09:19 PM	#1435
Msand9898 Registered Member Join Date: May 2001 Location: Folsom, California Posts: 98	What happens if an LED fails? Are they individually replaceable, or do you have to buy a whole light kit all over again?

05/16/2012, 05:37 AM	#1436
Chromey316 Registered Member Join Date: Oct 2010 Location: Acton, On, Canada Posts: 179	I took 1 out to be sure, And it is in fact a optic, It looks like a magnifying glass when you look through it. Im sure thiers more then 1 make or disign of optic.

05/16/2012, 01:20 PM	#1438
jefftse Premium Member Join Date: Oct 2007 Location: Baltimore, MD Posts: 189 Blog Entries: 2	I'm looking for LED actintic lights. Can anyone know where I can get them?

05/16/2012, 01:22 PM	#1439
Chromey316 Registered Member Join Date: Oct 2010 Location: Acton, On, Canada Posts: 179	I can clearly see where these LEDS are soldered on, So im sure if i needed to fix or change a LED it would be a snap.

05/16/2012, 05:46 PM	#1445
Travis1787 Registered Member Join Date: Feb 2010 Location: New Port Richey, FL Posts: 2,646	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?

05/16/2012, 06:17 PM	#1446
Chromey316 Registered Member Join Date: Oct 2010 Location: Acton, On, Canada Posts: 179	120' All the way 4 days now And my corals LOVE the new lights, Everything is almost bouncing.

05/16/2012, 06:43 PM	#1448
Travis1787 Registered Member Join Date: Feb 2010 Location: New Port Richey, FL Posts: 2,646	So 120 optics and lense? Or just one or the other?

05/16/2012, 08:09 PM	#1449
bhazard451 Registered Member. Join Date: Nov 2009 Posts: 1,900	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.