TAC BAT IS 40X BRIGHTER THAN A REGULAR FLASHLIGHT! High performance light has 5 modes: low, medium and high, plus powerful blinking strobe light and SOS modes that help deter intruders. Can be seen up to 5 nautical miles, and works even when frozen in ice or submerged in water! Sturdy aluminum bat extends 12". Has zoom function, wrist strap, and on/off button. Uses 3 AA batteries (not incl.).