Tritium gas tube, self luminous, bright and visible in the dark.
Long life span, glows continuously for 15 – 25 years.
Perfect for decoration, jewelry, glasses, clock, etc.
Suitable for indoor and outdoor use.
Material: Tritium gas
Size: 1.5mm*6mm / 3mm*22.5mm (optional)
Color: Blue / Yellow / Green / Orange / Red / White / Purple / Pink (optional)
1 * Tritium Gas Tube