Originally Posted by JVB
and not as susceptible to dimming at idle with Gerbings and Servos going.
Presumably, that's their reduction in draw vs. the halogens, but ... that dimming at idle on the halogens, in theory, was also shortening their lifespan (I wonder if there was a connection between voltage drop at idle and the H7 bulbs you folks have gone through).
The filament has to burn at a certain heat before the halogen gas forces the suspended particulate matter back ON to the filament, increasing its lifespan. If that cycle breaks (voltage drops), the lifespan shortens.