Firefly Mini / Micro Safety Marker

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This 3-pack of Firefly Mini Markers provides a simple, durable way to mark switches, panels, or gear in total darkness. Each marker features a green trigalight® GTLS (Gaseous Triti um Light Source) housed in a clear body for easy, always-on illumination—no batteries, no charging, and no upkeep required. Designed for installations where visibility is critical, these markers glow non-stop for over 10 years, regardless of temperature, humidity, or lighting conditions. Perfect for identifying controls, tools, keys, or safety assets when the lights go out. Dual-Use Configuration: Mini Marker (top + base): Designed for mounting. Includes screw-holes for secure installation. Micro Marker (top only): Use alone as the smallest tritium marker available. Key Features: Powered by green tritium GTLS – continuous glow for 10+ years Zero maintenance – no power source or light exposure needed Use as fixed mini marker or tiny standalone micro marker Clear housing for optimal glow visibility Lightweight and highly durable Specifications: Mini Marker (top + base): 25 x 8 x 6 mm, Weight: 1.0 g Micro Marker (top only): 11 x 5 x 4 mm, Weight: 0.3 g Each pack includes 3 markers, pre-installed with green tritium lamps and ready for deployment in any application where visibility matters—no matter the conditions. Show more