GVM 36° Projection Kit for Photography Light with Bowens Mount This product is an optical accessory composed of a high-quality optical system. It has undergone rigorous optical calculations and experimental research and development. The unit can be used with the GVM-PR150D, GVM-PRO-SD200B, GVM-PRO-SD300B, and other series (f 300W) of photography lights, transforming instantly into spotlight, follow light, and projector light. It is specially designed for experienced photography enthusiasts. The product is suitable for various scenes such as live broadcasting/outdoor activities/film and television shooting / studio photography. The GVM-CXT-36 accessory offers a wide range of creative light shaping tools, including 1 lens, a color film holder, a slide holder, and a range of slides. You can create as many shapes, patterns, and shafts of light as you need, such as crescents, branches, and more. Besides, this unit has a very good light gathering effect. For example, when paired with GVM's PRO series of photography lights, the illumination increase between different distances at the same color temperature is very significant. It can also realize the needs of spotlighting, light chasing, beam cutting, optical zoom, beam projection, beam modeling, etc. for users.