The Dynalite SR3200 Ring Flash provides a crisp, almost shadowless light when used with a Dynalite power pack. It can handle up to 3200 watt/seconds. The SR3200 has a 16′ (4.8 m) head-to-pack cable. It can be used with any 35mm style, or medium format camera. The included handle and bracket allow hand-held or tripod use. Its interior 100mm diameter permits use of a wide variety of your lenses.