The all-new Firefly Pro waterbug is a SOLAS approved strobe light with a built-in water activation feature that will automatically activate once submerged.
With 4 activation functions, toggle between the armed mode for automatic water activation, ultra-bright strobe light or the SOS strobe to visually alert Search and Rescue of your location, then toggle to the Steady-On feature for close up recovery operations.
The remarkable cool whie white color LEDs produce 360° beam of light that is over 41 candelas bright allowing for visibility of over 3.5 miles. With the all-new microprocessor and energy efficient electronics, the Firefire PRO operates continuously for over 65 hours, that's 48 hours longer than SOLAS/USCG regulations and twice as long as competitors.
ACR Firefly Pro LED waterbug datasheet (PDF)