New old stock - these were bought for a customer who never used them. They haven't even been out of the box!
The Elinchrom Zoom Action Head is compatible with all Elinchrom power packs made in or after 1981. Its Intelligent Flash Cooling system responds to heat generated by the 300W modeling lamp and 3,000W/s flash tube by running faster at peak performance and slower at lower power, thus extending the life of both. The head derives the "zoom" part of its name from the unique focusing design that allows you to move the flash tube closer or further away from the reflector like an open face hot light for harder or softer effects or to perfectly fill the accessory in use. Using an 8.25" (21 cm) reflector, you can vary the beam angle from 50 - 66°. The angle can be conveniently selected from knobs located on both sides of the head. The "action" part of the head derives from the special "A" type twin-pole flash tube which offers up to 45% shorter, action-freezing flash durations than standard omega-type flash tubes. During normal operation you can shoot all day without stressing the head and when necessary, you can fire up to 20 full power, back-to-back serial flashes before pausing.
While the recycling time is determined by the pack in use, suffice it to say that the Zoom Action can handle anything in the Elinchrom family of products. The head features a clear, protective glass dome and has a built-in 90° reflector which is perfect for umbrellas or soft boxes. A standard, built-in Elinchrom bayonet mount gives you access to the huge array of legendary EL-Reflector and Rotalux light shaping tools.