Selecting a LED Fixture - By Steven Pro

[chicagobears2010]

Please help! I'm looking to buy my first LED unit. It is for my 40b and the budget is $350. How can I tell without seeing the light in action what the coverage will actually be? I live where the only LED's being used are MarineLand.

Reef radiance.com

 

[NanaReefer]

OMG!! I just bought the RR EverGrow IT2040!! On sale for $289!! I hope they cover my 40b!!!

 

[NanaReefer]

OMG!! I just bought the RR EverGrow IT2040!! On sale for $289!! I hope they cover my 40b!!!

Oops scratch that. Went with the LumenTek Pro 180 instead on sale for $319

 

[chicagobears2010]

Oops scratch that. Went with the LumenTek Pro 180 instead on sale for $319

Where'd u get it thru?

 

[NanaReefer]

ReefRadiance.com

 

[memori shots]

Hi I really need some help choosing some lights I have a 220 tank 72 by 30 inch and 24 inch I currently am using meta hi but my con Ed bill is a killer I want to switch to reef breeders (2) 36 led lights but I don't know who have ever used them my budget for lights are 1500$ any help will be great

 

[ReefLEDLights]

Thermal Management is Key

All things equal a fixture using Cree X Series LEDs with a junction temperature of 25 Degrees C is 15% brighter than the same running at 85 Degrees C.

3 Watt Bridgelux Knockoffs can be at a greater disadvantage due to their design.

Also...Heat and Excessive Heat does not play well with electronic longevity.

Bill

 

[RobberyinCSharp1824]

Oh my god I wish I had seen this article sooner! Definitely struggling to keep different coral alive with my LEDs, and now you mention some key facts that I didn't know, I realize where I have made my mistakes! Arghh....

 

[boka]

what is your light schedule? what are the peak for blues and whites?

 

[boka]

what is your light schedule? what are the peak for blues and whites?

consider reefbreeders photon 24, here is mine over my 40b. this is with 90* optics, and it lights the entire tank very well (see below for a better pic of coverage). I've gotten great color and growth from it IMO.

Untitled by GHill762, on Flickr

Untitled by GHill762, on Flickr

this last photo (a terrrible photo) is to show coverage and that it's not dim around the edges like the above photos suggest, that is just from the way my phone takes photos, it's adjusting to the brightest part of the tank..

Untitled by GHill762, on Flickr

 

[Joshblah]

good point!! This article is helpful

 

[Thle009]

I have 2 Orphek Atlantik V2.1b. Really like the color, but nothing like what I saw those tanks with MH Radium bulbs. Just wonder if any one here have the Atlantiks and have better results.

 

[twilliard]

I run the atlantik compact and couldn't be happier.
Sure these may be no comparison to mh but then we are talking apples to oranges

 

[arman]

hi
you have advised that i buy what i my self see it
but here in my country the LEDs are mostly fake
Any one knows how to find out that which one is fake or not???

 

[twilliard]

hi
you have advised that i buy what i my self see it
but here in my country the LEDs are mostly fake
Any one knows how to find out that which one is fake or not???

What country are we speaking of?
LED technology has come a long way.
I don't think i can say a brand is fake. There are a lot of differences in fixtures.

 

[arman]

IRAN im talking about
there are LEDs that the LED sellers say that its for saltwater tanks but no aqua brand ive seen

 

[arman]

one more question
do LPS corals grow in aquariums????

 

[arman]

ive heared that if the kelvin of light gows higher than 14000k the corals do not survive more than 1 year for example 25000k

 

[twilliard]

one more question
do LPS corals grow in aquariums????

Yes lps coral will live a long time.
14k is a good target but remember led fixtures are deceiving to the eye.
A par meter will tell you A lot. Do you have access to one ?

 

[arman]

Yes lps coral will live a long time.
14k is a good target but remember led fixtures are deceiving to the eye.
A par meter will tell you A lot. Do you have access to one ?

whats the par meter???????