Brighter Indicator bulbs on dash? Done at last!!

[Fazerider]

My old Fazer's dashboard lights get dimmer every year. It's the corrosion in the wiring. I'd make sure your connectors right from the Reg/Rec to the dash are in tip top condition first, otherwise you're treating the symptom not the cause.

Incandescent bulbs get dimmer with use because tungsten evaporates from the filament making it slightly thinner, the higher resistance means it runs at a lower power. An even more significant effect is that the lost metal condenses on the inside of the glass as a dark layer.