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TinyGiant

GU10 LED Build Thread (Chinese Ebay Lights)

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I want these lights for my new tank, I am a newbie so I dont wanna spend much just to start. The tank is 24"L 20"W 15"H. I am guessing I ll need 12 bulbs for this, 6 CW and 6 Blue. I only intend to keep softies, zoas etc. Would these lights be sufficient?

And cant I put them a bit lower than 10"? It looks a bit odd, The height.

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you can go a little lower, but the beams from the optics will make the lighting look unbalanced. 12 should be fine for softies :)

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I couldnt get the 60 degree optic bulbs from LED HK, is there another source?

They only had lots of 15 or something.

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New Pictures!! The tank is now 11 months old.. almost to 1 year!

 

will have a video to post in a bit too.. its uploading right now

 

 

 

wholetank2011nov.jpg

 

wholetanknov2011.jpg

 

IMG_4010.jpg

 

IMG_4015.jpg

 

leftside.jpg

 

rightide.jpg

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how many of the lights at 5watts each will I need for 16x16x16 17.7gal

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maybe 16?

 

two rows of 8 staggerred?

 

could manage with 10-12 prolly if you wanted to start with less

Edited by TinyGiant

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Bump!

 

 

How is the shimmer with these?

If its not much, can I supplement with RB CREE on 60 degree optics?

 

EDIT: I ordered 6 Whites and 6 blues :D

Edited by ashwin1224

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the shimmer is great. Just remember you need surface movement to get shimmer. so make sure you have a powerhead moving the water around in the tank.

 

 

 

 

you can kinda see the shimmer a little in this video i took of my frag rack the other day with my cell. there is a good deal of shimmer with these lights. they are intense!

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hk led will sell the 4x1w 60 degree covers for $2ea shipped (just message hk led). i ordered a dozen to replace my 30 degree covers and two more bulbs for $24. the old 30 degree lenses were just to spotlighty and i took them off shortly after trying them. i'm hoping the new lenses with blend much better.

Edited by mrbigshot

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Any idea how much more, or less effective running these lights without optics on a shallow tank would be? I'm using a 9 bulb setup (3 1w lights per bulb, 6 blue, 3 cool white) over a 10 gallon frag tank (approx 10" deep). The 45 degree optics seem to be a bit too focused in that shallow of a tank, but I want to make sure I will have enough PAR if I run them without optics. Any thoughts?

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hk led will sell the 4x1w 60 degree covers for $2ea shipped (just message hk led). i ordered a dozen to replace my 30 degree covers and two more bulbs for $24. the old 30 degree lenses were just to spotlighty and i took them off shortly after trying them. i'm hoping the new lenses with blend much better.

 

I have the 60 degree covers on my 4x1w bulbs. I get no spotlighting at all with them being ~8" over the water... you will probably be satisfied

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HI TinyG,

I was following your thread even though I worked with 3W Cree LEDs with arduino controller. I am setting up a 10G frag tank. I have mixed reed and trying to frag some of the corals that outgrow my tank. Do you think 5blue and 5cool white GU10's is enough for a 10G tank. I think I can have 3 tiers if frag racks for different light intensities.

Thanks

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10 should be fine.. I had a little less than that over my 5.5 and it was a bit too much. on a 10g it should work out great.

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cb5f34bb.jpg

 

Since I switched out my tank from 10 gallon to a 18 gallon I added 8 more GU10 sockets to my fixture. This is what it looks like now. Currently I'm only running 15 GU10's because I that’s all I have right now. I placed an order for 3 more; now I’m just waiting for the shipment from Hong Kong.

Edited by dlogfx

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