The Ultra ZAP flash units are extremely precise, high power electronic photo flash units. They are designed for professional studio use as well as demanding location work due to their compact, yet highly durable construction and extruded housing. The flashpower and modeling lamp intensity are continuously variable over a 5 f-stop stepless range, independently adjusted on separate rear panel fade.
The UltraZAP units come with a 150-watt, long-life quartz bulb encased in a large frosted glass envelope to eliminate hotspots and pattern errors common to small, clear-envelope household bulbs. The unit offers highly accurate, "what-you-see-is-what-you-get" modeling due to careful engineering of the flash and modeling components with respect to polar patterns, specular content and accurate tracking of light ratios from both sources. With respect to tracking accuracy, the units employ full voltage regulation of the flash circuits as well as the modeling lamp circuits to maintain consistent flash /model ratios under working conditions.
The modeling lamps may be set to full power, adjusted via the rear panel fader over the same range as the flashpower, or turned completely OFF. The lamps may be additionally set to indicate recycle, going out when the unit is fired then coming back on to indicate when recycle is complete.