Fenix SD10 LED Dive Flashlight 930 Lumens Professional Scuba Diving Light with Two LegionArms CR123A Batteries 930 lumens max Utilizing Cree XM-L2 (T6) neutral white LED with a lifespan of 50,000 hours 328 feet/100-meter submersible specialized diving light Motion control or twist switch for output selection Locked twist switch to prevent possible flooding by over turning This bundle include two LegionArms CR123A lithium batteries