For use with coils that do not utilize a built-in resistor such as JEGS 555-40100 or 555-40105 coils.
Should always be mounted to the firewall (or another non-heated metal surface) for additional heat dissipation.
JEGS ballast resistor is designed to be used on low resistance ignitions such as breaker point and some optical trigger breakerless systems. Ceramic construction prevents overheating of the system for durability while maintaining consistent coil current and spark duration. Rated at 1.6 Ohm.