Bailey of Sheffield Rainbow PVD Blue Glow Bead
'Glow’ is our most technologically advanced bead so far and incorporates 3 trigalight® Gaseous Tritium Light Source (GTLS) which provides a reliable, safe and self-powered source of continuous light output.
No battery or charging by ambient light is required during the lifetime of this product.
GTLS comprise a sealed borosilicate glass capsule which contains a tiny amount of gaseous tritium, the power supply for the device.
Electrons, released by the gaseous tritium, are harnessed to energise a phosphor coating on the inside surface of the capsule, causing it to glow.
GTLS contain no moving parts and, because the unit is continuously energised, an off/on switch is not required.
Glow will remain energised for more than 10 maintenance-free years, even during extended periods of complete darkness.
Trigalight® devices can be used in any environmental conditions, even under water, and in temperatures ranging from -20º to 70ºC.