It is against the law for your car to impersonate an emergency vehicle.
It is OK for a tiny toy car.
Maybe it is OK for a tiny SMART car, since it is a tiny toy car (hee, hee).
It is against the law for your car to impersonate an emergency vehicle.
It is OK for a tiny toy car.
Maybe it is OK for a tiny SMART car, since it is a tiny toy car (hee, hee).
Each headlight takes ~3A, surge ~40A. Maybe PN 45-488 from www.hosfelt.com would work: $0.59.
If you have some small current running through both headlights continuously then the surge current will be way less.
You'll need a driver circuit with a coil spike suppressor [a fast diode or an MOV or a resistor], or a smaller relay, that can handle the larger relay coil current.
Assuming the engine is not running, no? The last time I saw those flashy lights was at 80 mph, and the cop had no problem restarting his car after giving me my ticket.
If you live in the US, go to the local NAPA auto parts store and purchase a flasher unit for a school bus. That's what I did to make my headlights flash. (I'm on the local Fire Department)