I bought one of these because I needed another lighting effect in my music room to complement the two equinox cirrus units i already have. Make no mistake this lighting effect is amazing for the price! Admittedly the cirrus units have 4 different effects incorporated whereas this light has just the one but it is great as you can regulate the speed from really manic to really slow and relaxing. The only drawback is the short cable supplied which at the price is not worth mentioning. I've had the light 4 months now and it gets used daily and is still going strong. The cirrus units incidentally are priced around £70 each!