Professional Scenic Projection System Patent Pending CONVERT AN ETC SOURCE FOUR SPOTLIGHT INTO A SCENIC PROJECTOR OR GOBO CHANGER! The GAM SX4 ® system offers a choice of four Trays that snap into an ETC Source Four. The Loop Tray allows the use of over 30 GAM pattern loops for scenic projection. The Six-Gobo Tray uses any "M" size gobo from the more than 800 patterns available in GAM's catalog. The Disc Tray uses an 8.5 inch Effect Disc. The SX4 ® is fully modular, so that your Source Four can revert to a conventional ellipsoidal quickly and easily when needed. GAM can also supply a 575 watt HMI Source Four, offering three times the light output. Built with the rugged demands of the theme park, retail and architectural markets in mind, the GAM SX4 ® offers amazing dependability and many options with hundreds of off-the-shelf effects as well as custom designs. Loop Tray: Continuous moving effects (FX/Loop) projecting clouds, rain, snow, fire, water ripples, waterfalls; more than 35 off-the-shelf designs. Each FX/Loop can easily be mounted in the Loop Tray, offering many choices and much flexibility. Speed and direction can be controlled from the Loop Tray, with built-in speed control and direction switch. The speed of the effects can also be controlled when the Loop Tray is plugged into just about any dimmer, therefore cueing from your light board can be easily done. For display applications, simply plug it into the main power and set your speed and direction; no light board is required.