Has anyone purchased any of the leds from China off Ebay? Some of the lights are $10! I'm really looking to just fill in a few areas that are shadowed to grow zoas, nothing fancy, but I'm not not sure I trust their claims to "grow coral".
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LOL.. .that's what she said....For penetration, you'd want a minimum of 3 watts per LED. Anything less just doesn't go deep.

