Using the " common" definition soreadily thrown around with no real definitionLED's have come a long way. For an SPS tank the Radion G6 is a MUCH better choice than the Neptune Sky. That being said, no LED fixture on the market provides actual full spectrum light. We use Radion T5 hybrid fixtures on all of our systems. It truly is the best of both worlds. We get the excellent color rendition of the Radions with the full spectrum and reduced shading of the T5's.
t5's are not full spectrum either.
Many current LEDs are as " full spectrum" as t5's.
"Full spectrums" at various depths.
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