Ikelite SubStrobe 100A Underwater flash

The SubStrobe 100A is the value leader in a strobe capable of covering wide-angle lenses underwater. Turning a knob adjusts the angle of coverage from 80 to 95 degrees, allowing optimum coverage for a full range of lenses from 15mm to macro. The adjustable coverage eliminates the need for a diffuser that would reduce the light output. The special soft-lite reflector and 4800 degree Kelvin color temperature provide exceptional flesh tones. Built-in modeling light helps in aiming the strobe while illuminating subject's colors. The electronics are completely sealed from the battery compartment. The strobe provides approximately 160 flashes from four "D" cell alkaline batteries. Full power recycle time is less than four seconds. PRODUCT FEATURES: Guide Number (ISO 100) Surface - 52-60; Underwater - 28-30.