Rechargeable Beacon Light - Kit-B (red LED) screws into our packs/bags' Hard Point(R) ports via its rubber boot/hardware. Molded loops and screw backer also allow mounting to cords, carabiners or ½" webbing. Add bright 100 Lumen visibility for bike/moto, jogging, hiking, or boating and for pro use like police, military, agency and industrial. One-button control cycles constant to 3 independent blinking/intensity modes. Constant mode is usable for reading maps, etc. (red light good for eyes' night vision.) If mounted facing to packs/bags interiors, these are a unique illumination of bag contents. Spun in the air on any cord as illustrated, these create a large, bright circular signal; a great option for rescue or rallying purposes. The side loops keep the light oriented to the observer without twisting away on the cord. See hazard4.com for more detailed info.