Refugium lighting UV discussion

Fabian11

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Hello everyone!
I recently bought a cheap grow light fixture online and I was wondering what UV lights do in a led-fixture like this, and if they might be harmful. Does anybody know more about this topic? Thank you!
DC1EA1AC-0417-4F3D-892C-38AB5E56D9D6.jpeg
 
UV at this frequency is barely UV. It will add to photosynthesis, and offers no sterilization.

I personally run a good chunk of 385nm diodes over my display tank.
 

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