Light-Saver, Water-Activated Strobe Light
MARINEFX Light-Saver Water-Activated Strobe Light Small and unobtrusive, this water-activated, bright LED strobe can be seen over one mile at night. The buoyant, waterproof plastic case measures just 2"L x 1"dia. Has three pre-installed AG13 batteries with 80-100 hour operating life. Includes a lanyard and clip for attachment to PFDs or other items on your boat. Not USCG approved.