my rating is relatively low, but the effect fulfills its task without any problems - it switches the signal, the problem is that I feel as if the adapter somehow does not hold in it, as if it does not hold in the effect - any attempt to manipulate it is a certain risk that it will move in the effect adapter and it stops lighting - the effect needs electricity ONLY for the LED lights, but even so it's quite annoying when it doesn't hold and it moves there and the effect "blinks" anyway I recommend the effect, it's definitely a lot of music for the money and less worries