I’ve spent over and hour trying to identify a replacement bulb for my light and motion cabeza headlamp from 2001 with no success. After 20+ years the batteries still charge, but i just burned out my last bulb. The battery it runs off of is 7.2 V. What I have learned is that it likely a bi pin halogen bulb. Anyone know anymore? Volts, etc…Picture of light bulb attached.
Might be bespoke. I’ve never seen one with an extra coil like that, probably for inrush current protection (not of the bulb but of the lamp).