Unity Tactical SPARK Marker Light — Professional-Grade IR Identification System The SPARK is a compact, low-profile infrared marker light engineered for tactical and professional applications. Designed for rapid team identification in low-light and night operations, it mounts securely via Velcro to helmets, plate carriers, chest rigs, and load-bearing equipment. Built from durable all-polymer and silicone construction with a matte black finish, the SPARK delivers 200+ hours of runtime and resists snag and rattle. Its intuitive four-mode cycle—Constant High, Constant Low, Blink, and Off—provides operational flexibility for identification, signaling, and covert positioning. Lightweight and unobtrusive, the SPARK integrates seamlessly into existing gear without compromising mobility or comfort. Ideal for tactical teams, law enforcement, military personnel, and professional security operations requiring reliable, hands-free IR identification.