ETC EDLT Lens Tube | Beam Angle Degree: 19, Color: SilverWhen your lighting situation requires precise optics for projecting images, gobos, and logos, the Source Four EDLT (Enhanced Definition Lens Tube) option is an invaluable addition to your fixture inventory. The EDLT attaches easily to any new or existing fixed focus Source Four, Source Four LED, ColorSource Spot, or Source 4WRD luminaires. While increasing light output up to 22% over standard lenses, EDLT also provide heightened sharpness and stunning