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.
EL 11001 8' Head Cable for Quadra 5.3" (13.5 cm) Standard Reflector for Quadra Flash Head Multifunction Cap for Ranger Quadra
Elinchrom Quadra Pro Flash Head