Specs: Output: 350 lumens IPX Rating: IPX8 Max distance (High setting): 64 m Max distance (Medium setting): 45 m Max distance (Low setting): 10 m Display weight: 79 g (AAA), 73.5 g (BD1500) Weight without batteries: 46 g Design & Details: Powered with three AAA Alkaline cells (included) or the rechargeable BD 1500 Lithium-Ion battery and charger (sold separately) for maximum flexibility Red LED night vision has dimming and strobe modes and is quickly activated with dual-button interface Settings include dimming, strobe, red night-vision, and lock mode Multifaceted optical lens design IPX8: Waterproof-tested to operate at least 1.1 meters underwater for 30 minutes Integrated battery meter display shows power remaining Digital lock mode feature safeguard against accidental use when stored or packed