Powerful Flash with High Guide No. 58 (m) / 190ft(at 105mm focal length,ISO 100 in meters/feet).
Charging socket for external power pack: adds a charging socket for external power pack. PC synchronous port: simple for you to use the PC synchronous line.
50 Watt/seconds power with a guide #28 (underwater at ISO 100)
Operates TTL when connected by an appropriate sync cord to some Ikelite housings or manual exposure mode with six manual power settings in one-half f-stop increments
70° angle of coverage, 80° with diffuser
Recycle time of 3.5 seconds (Full power)
Up to 200 flashes with full power batteries
5700° kelvin color temperature
Includes 1" Ball Mount Mark II to enable strobe attachment to optional ball arms with 1" diameters, such as those from Ikelite, Aquatica TLC, Ultralight, Nauticam, and other brands