Denso Iridium Power IKH20
To increase ignitability, the important point is to let the flame kernel caused by the spark to grow to a large size. Normally, this can be accomplished by widening the spark gap, however, this causes spark voltage to increase, which has the opposite effect. Iridium Power uses Denso’s very own U-Groove ground electrode to realize superb ignitability while maintaining spark voltage at low levels.
