50 watt 120 volt full spectrum led. Needing heat sink.

markstrimaran

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The nitrates are down to 5 ppm. My other full spectrum lights are in also. So I am ready to start trying some things.
20190112_150952.jpg
Fresh from China, a full spectrum 380nm - 840nm . Designed to be a plant grow light but yielding a nice bright white.

20190112_155659.jpg
I remembered I had a heat sink on a 100 watt dc cob led, and the bolt holes lined up, awsome.

If these white chips work, I will mount them on stainless steel. So starting on a massive water change. Then to see what they can grow.
 

markstrimaran

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I first ordered these from china. The ones I recieved were of the typical purple grow light color.
 

markstrimaran

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Just watching to see what grows, 3 watt leds on the left. The 50 watt cob led is the brite white spot on the right..

It seam to grow mostly bubble algea on my basement tank. It is about 60'F cold.
The old light was a wallmart 3500 k led t8. Which grew only red beard and some riffs of black beard.20190126_185748.jpg
 
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Ulu

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I cannot imagine the corrosion you will get running aquarium water through aluminum tubing. I have aquarium lids with a few bits of aluminum in the assembly & I regret using it.
 
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markstrimaran

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I cannot imagine the corrosion you will get running aquarium water through aluminum tubing. I have aquarium lids with a few bits of aluminum in the assembly & I regret using it.
It is 304 stainless steel, aluminum is too galvanic.
 

Ulu

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People say that 304 is okay unless you're using salt water, but I would paint anyhow.
 

markstrimaran

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People say that 304 is okay unless you're using salt water, but I would paint anyhow.
Right now I am just testing the lights, too see what they will grow. Led's can be temperamental with algea, if the red spectrum is in the bright orange vs deep red.
 

markstrimaran

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Nov 21, 2015
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mark
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retired oilfield diver, welding technician
20190126_185842.jpg
Before 20190127_191511.jpg
After, the red algea morphed? After 48 he under new lights.
 
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