GAM Prismo with 5-Facet Prism w/ Speed Control animates a pattern and multiplies the image 5 times. The prism speed can be varied by plugging into any dimmer or using the sliding switch on its 6-step power supply. The Prismo fits into a standard ellipsoidal spotlight via the gel frame. Can be controlled with a dimmer and console or can be plugged directly into a 120v line. Speed range is 0.875 rpm to 8.0 rpm.