ETC Source 4 Ellipsoidal. There's only one Source Four - the ellipsoidal fixture that changed the lighting industry. Source Four combines the energy-saving power of the patented HPL lamp, with a dichroic reflector and optical-quality lenses, for the coolest beam on the market. That means your gels, patterns and shutters last longer and your performance space stays cooler. No other light offers such optical brilliance. Source Four's revolutionary technology gives you a clean white beam for unequaled imaging, crisp pattern projection, and a bright, even field. The EDLT lens tube option for 19º, 26º, 36º and 50º field angles makes the Source Four even better for ultra-crisp, high-contrast gobo projections. This Item includes: 1x Source 4 fixture 1x 19 Degree lens 1x C clamp 1x B size pattern holder 1x Male 5266CM2 connector NEMA 5-15P 1x Safety cable 1x 575W HPL 120v lamp