The GS1 Fitted Grid Spot Attachment is designed to fit directly over your flash unit’s standard 7-inch reflector. This built-in grid reflector will take the 80º beam spread of your standard reflector down to a highly controllable 18º spread for a back or hair light. (7.375 inches square x 2.25 inches deep)

Note: As the GS1 does not connect with the UMF Unit Mainframe, it can not be used in conjunction with filters and gels or other LiteMod accessories. To have a grid controlled spread with the use of other accessories, you will need to get the individual honeycomb grids.