trigalight® works similar to a CRT tube, formerly used in TV screens. Like TV CRT tubes, our lights are built using a glass housing, a gas proof glass containment. The inner walls of this glass vessel are coated with a very thin layer of phosphorescent powder. This powder (zinc sulfide) has the ability to change electrical energy into light.
The electric energy in case of the trigalight® is generated by the tritium gas, a low radiation beta emitter. While decaying, the tritium (red) looses its electrons (blue) . When such an electron hits the layer, it is captured and transformed into light.
The colours of our trigalights are therefore not dependent on the gas filled in, but on the coating, which can be varied.
The brightness of the light is however proportional to the filling pressure (quantity of gas).