2AAA Dive Beacon Be seen at night by fellow divers and dive master with this dependable high visibility red personal marker beacon. •Long burn time and high brightness make it a perfect chemical light stick replacement •Lanyard included for easy attachment to tank valve or BC •Always ON, no annoying flashing •Optional 1.13 watt high powered xenon lamp (2 - 2.5 hour burn time) •Proudly made in the USA