The honeycomb restricts the light beam, causing only a small loss. It is used in situations where you want to illuminate the center more intensely and darken the edges of the illuminated area. It is mainly used on lamps that give "backlight" and to highlight a selected part of the stage. It can also be used to subtly draw attention to an object, texture or color in a photographed scene. It also helps to achieve the intended atmosphere or moody atmosphere of the stage. Fixed with velcro to the inner edge of the softbox.