Comparing Substrobe 200 to YS-120

This is an apples to oranges comparison since the only real similarity may be the suggested retail price. Compare the following standard features:

Substrobe 200 Output: 200 watt-seconds Recycle time: less than 2 seconds Power settings: 1/8, 1/4, 1/2, Full Modeling light Battery fuel gauge Rechargeable battery included TTL slave available Compatible with all Nikon SLR cameras Actual underwater GN of 38 All Ikelite Substrobes provide Nikonos type functions like blinking the camera ready light when ISO is set over 400; providing full power flash when strobe is set to TTL and the camera is set to M-90; and locking the shutter speed at 1/90 when the strobe is turned on. Substrobe 200 can utilize our Smart Charger that is not affected by inconsistent input voltages.

YS-120 Output: Less than 85 watt-seconds Recycle time: 4 seconds Power settings: 1/2, Full NO Modeling light NO Battery fuel gauge Rechargeable battery optional NO TTL slave available Compatible with certain Nikon SLR cameras (see owner manual page 18) Actual underwater GN of 33 Their four-second recycle time becomes longer after each flash without optional rechargeable batteries. Intensity difference between center and 45 degrees (90 degree coverage) is over one f/stop, the normal standard for coverage claims. Adding a diffuser further reduces intensity. The YS-120 will not be compatible with Nikonos strobes when attached to an Ikelite "T" connector.

The watt-second rating represents the actual electrical energy that is available to flash the strobe. This rating is comparable to horsepower in an automobile or watts in a light bulb. Note that the SubStrobe 200 is more than twice as powerful as the YS-120.