A lighting unit is removably inserted into a pocket to create a light effect through use of a light effect material. The lighting unit has a PCB with a first side to which one or more LEDs and a battery are mounted. A clear potting material encloses the PCB, LEDs, and the battery and creates a transparent space proximate an inner surface of the light effect material which maintains the light effect material at a preselected distance from the LEDs so that light emitted from each light emitting die is dispersed by a plurality of dispersive elements in the light effect materials to create the light material viewing effect.