The 1294.1000 is a Light Guide Switch will be fixed by 2 press-in lugs onto the PCB and is designed for the usage of up to 3 ChipLEDs. The light guide switch is designed to accommodate 2mm light guides, i.e. 2000μm PMMA fibres as well as black coated 1000μm PMMA/PE fibres can be used. So, there are single, twin or tri coloured displays are feasible.
