The Unity Tactical SPARK is an ultra-minimalist, personal identification and marking strobe built for tactical, industrial, and emergency use. Fully encapsulated within a flexible and rugged silicone shell, this completely sealed unit is thoroughly waterproof and impact-resistant to withstand use in harsh conditions. Operating the strobe is purposefully simple; pressing the center of the translucent pad steps the light cleanly through constant low, constant high, blinking, and off functions while sending a clear tactile click straight back through the user's thumb. This white-LED version provides a low-cost, disposable alternative for ground-level Identification Friend or Foe (IFF) tracking, search and rescue signaling, or marking static objects and route safe-zones in zero-light scenarios. Equipped with a pre-installed hook-and-loop backer, it anchors seamlessly onto helmet loop clusters, plate carriers, tactical service K9 rigs, or gear bags without adding noticeable weight.