SeaLife Sea Dragon Fluoro-Duo Beam

The SeaLife Sea Dragon Fluoro-Dual Beam is a fluorescence diving light. It emits a powerful blue beam through an integrated dichroic filter, tuned to the wavelength that excites fluorescent proteins in corals and other marine life so they glow rather than simply reflect.

A push of the button switches between a 65 degree blue fluoro flood and a white 800 lumen 15 degree spot, so the same light handles the fluoro work and the swim back. Yellow barrier filters for the mask and the camera lens are included, and they are not optional: without them the residual blue washes out the fluorescence the eye is trying to see. Run time is 60 minutes at full power and the light is depth rated to 100 m.

Blue beam: 65 degree dichroic flood, 26 watt per square metre output. White beam: 800 lumens, 15 degree spot. Control: one button. Included: yellow barrier filters for mask and lens. Run time: 60 minutes at full power. Depth rating: 100 m (330 ft).