Tritium Tube (2pcs)

Tritium Vials (2 pcs)

A light source that almost never goes out.

Tritium is a naturally decaying hydrogen isotope. Inside a sealed vial, it continuously excites a phosphor coating—producing a steady glow with no batteries, no charging, and no external light needed.

This is why tritium is widely used in military compasses, watch dials, and professional instruments.

Safety note

Tritium vials are considered safe when sealed and intact, as the radiation cannot penetrate skin.

That said, they are precision glass components—please be careful during installation and avoid impact.

Quiet, reliable, and always on in the dark.

Tritium Tube Size: 5.5 mm × 0.8 mm