Flawless performance and ultra reliability are the hallmarks of the profoto d1 a premier flash head boasting excellent colour stability short flash duration rapid cycle times and power adjustable in 01 increments over 7 stops eminently attuned to the exacting requirements of demanding photographers the d1 is suitable for rigorous daily use simple and quick to set up with plenty of practical features featuring built in air capability the head may be used in conjunction with the air remo