Refugium LED Light

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You should be able to find an LED spotlight at Lowe's or HD. What's critical is that the kelvin is 5000 or higher.
 
Isn't that way to high in kalvin?? I thought you wanted to be down around 6500-7000k??
 
6500K is what you want assuming you are trying to grow macro algae.
 
I'm using a kessil h150 purple and It grows like crazy! You can find them on eBay for around $70. I have to trim macro every week
 
I used the Cree CXA 2530 with great results. Very efficient and great growth for a single Chip LED. Both the 93CRI 3K and the 80 CRI 5.5 K grew Macro algae well.

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