An ignitor disabler for the starter circuit of a High Intensity Discharge (HID) lamp includes means for disabling the ignitor, and means for triggering the disabling means of the ignitor after passage of a predetermined amount of time. The triggering means has a timing component that begins time measuring...http://www.google.com/patents/US4962336?utm_source=gb-gplus-sharePatent US4962336 - Ignitor disabler
