XePulse II? The new HID Xenon capable pulsing system XePulse II? is specially designed to safely and reliably drive the proprietary electronic D-series XV4D XeStrike? ballast. Alternating or simultaneous pulsing rate ('wig-wag' rate) is preset to 1Hz (60 pulses per minute on each channel). The XePulse II? module is capable of driving up to 250 HID lamps per channel.