The Quadra Pro Head from Elinchrom is a powerful, full- functioning miniaturized flash head which is perfectly mated to the 400Ws Ranger Quadra packs. At only 10 oz and measuring a mere 3.1 x 2.9", the head not only packs well and is eminently portable, but is mountable in situations that would be impossible for a full-sized flash head.
The Pro designation denotes the system's standard head but in no way should it be considered an under-performer as compared to its "A" counterpart On the contrary, the Pro head is capable of very fast flash durations as short as 1/3,000 sec. - perfectly adequate for most applications and ideal for use with HyperSync shooting.
The Quadra Pro head does away with conventional halogen modeling lamps in favor of a low-draw PilotLight LED that produces the tungsten equivalent of 50W of tungsten light output. Elinchrom also offers the EL-RQ adapter for those who want to use standard full-sized accessories and reflectors. The head comes with a removable 8.2' head cable, while optional extension cables are available.