Contrary to the opinion that I read, this product is 100% silent, the light effect is powerful, it is not required to turn off to see the effects. Some rotates clockwise, others reverse dance. The bright spots are numerous and cover great space. it fits perfectly in luminaires, I tested in a narrow luminaire and it passes without worries. No overheating of the bulb (LED) contribute to perfect for a festive atmosphere. This compact and efficient object puts the disco ball in the closet !! :)