This unique accessory Bowens BW-1866 combines two types of direct light modifiers: a diffuser with a 1/8" (3.2mm) 30° grid. The net result when mounted onto the front of the 15" (38cm) Soft-Lite Reflector (after first removing the diffuser cone) is a central pool of bright light surrounded by a large area of softer light, ideal for enhancing portraits or products. The Bowens grid can be removed, for greater contrast, and replaced with other 7" (17.8cm) grids.