Sidd,Hey granger2,
The fans are quite. why do you ask? It is about the same as having my computer on. Maybe a pinch louder, but if there is any other background noise you would not be able to hear them. When i first got it i plugged it in my living room, you would not be able to hear the fans over the sound of the fish tank.
Sidd
I thought with leds they require more nutes like cal mag in flower esp? what do you think sid