EXMAX NG-10X Fresnel Lens Focusing Adapter Lens kit for Bowens-fit Lights 10X Studio Light Focus Mount Lens Adjust for Flash & Studio LED Light with 4 Color Filters The Nanguang NG-10X Fresnel Focusing Lens adopts Bowens mount,suitable for most of LED studio light and flash light. Its perfect for shooting profile, long distance shooting or old-style Hollywood effects with four color filter. Rotary telescoping design, by rotating the lens ring you enable adjustment of the light focus angle from floodlight to spotlight (10-40 degrees) and can increase the brightness of the original light by up to 10 times. The glass Fresnel spot lens is compatible with LED lights or monolight flashes with Bowens-mount.Operation Review: https://www.youtube.com/watch?v=7JuitNXvtQI Four color filter(including yellow, red, green, blue filters) are provided and snap into the front focus lens.they're easy to snap on and can be changed quickly for creating color accents or special effects. Compatible with:different flash light and LED studio light less of than 150W.Note: This lens is suitable for Bowens mounts.