I did quite a bit of research before buying this unit. On several websites I visited, this brand and model number was listed in the top five for its price point. At the time I bought this, you could by the unit with, or without, lights. I opted for the lights thinking it would be really cool with the fog/mist. As is turns out, it wasn't really worth the additional cost. The lights simply turn on, or off. They don't blink, they don't change colors, they don't fade, nothing. There's one red, blue, and green light. If I were to buy this unit again, I would save a few bucks and get the one without the LED lights.