This SeaLife Diffuser is for the SeaLife SL961 underwater strobe. Adding this to the front of your strobe will reduce the light output, but will soften the quality of the light and increase the angle of coverage. The diffuser conveniently flips out of the way if you need more output and less diffused light.
Attached easily & securely to strobe. Looked forward to eliminating those annoying hotspots on sand & light subjects. Dive trip in N.C., on second wreck dive, diffuser was on strobe when I got to the anchor line. White flip-up piece missing by the time I got to the hang line. Black base still attached securely to strobe. No idea what happened. Best guess is it flipped up & maybe hit against the anchor line. Really disappointed with poor durability. Probably won't buy another.