The Firefly Limpet Marker is a compact, self-powered glow marker designed for fixed placement—perfect for tagging switches, control points, or key equipment in dark environments where mains or battery power isn’t practical. Each unit features a sealed trigalight® GTLS (Gaseous Tritium Light Source), offering constant glow with zero maintenance for over 10 years.
Supplied in a 3-pack of a single colour, Limpet Markers come with a 3M adhesive backing, allowing you to peel and stick them wherever reliable visibility is needed. Small, lightweight, and simple to install, they offer an incredibly efficient way to enhance safety and visibility in low-light or no-light settings.
Key Features:
Pack of 3 markers with your chosen tritium glow colour
Includes 3M peel-and-stick backing for fast, secure installation
Always-on tritium light – no batteries or ambient light required
Glows continuously for 10+ years
Ideal for marking switches, panels, doors, and equipment
Compact, discreet, and easy to apply anywhere
Clear polycarbonate housing for maximum glow visibility
Performs in any environment – heat, cold, or wet conditions
Use Cases:
Label dark-area switches or safety equipment
Mark routes, lockers, or key access points
Perfect for camping, survival gear, or tactical kits
Use where battery or wired solutions are impractical
As one of the smallest tritium markers available, the Firefly Limpet Marker offers dependable, discreet visibility in total darkness—wherever and whenever you need it.
