The SureFire gas igniters are NFPA-rated as a Class 1, 2, or 3 igniter, depending on the application: Class 1 igniters are used for burner light-up and support under any conditions; Class 2 igniters are used for light-up and support under prescribed light-off conditions, and Class 3 igniters are used
for light-up only and are not intended for warm-up or support.
