Source Four revolution lighting fixture with high performance Source Four zoom ellipsoidal equipped with motorized pan, tilt, zoom and on-board dimming. Add 24-frame capacity gel scroller that borrows from Wybron’s famed Coloram technology. Couple that with an exclusive QuietDrive motor control for amazing low-noise performance. All of automated parameters required by theatrical lighting designer are combined to create the Source Four Revolution. Revolution’s two module bays accept any two of four optional beam-control modules. And these modules insert without tools or fixture disassembly. All modules are auto-sensing and require no patching or internal configuration changes to the fixture. Advanced cooling design for ultra-quiet operation. True plug-and-play convenience. 18-leaf construction iris module, static wheel module, three positions plus open. Uses glass or steel M-size gobos or filters. Three positions plus open. Variable speed rotation in both directions. High-resolution indexing. Uses glass or steel M-size gobos or filters in rotating wheel module. Four shutters in four planes with 90º range of movement.