Specifications: Constant current circuit, constant brightness. PC engineering plastic lens. The outer casing is made of aerospace aluminum and CNC finished. Anti-wear treatment of surface military three-stage anode hard oxidation. Stainless steel pressure ring effectively protects the core of the flashlight head. Magnetically controlled rotary switch. Item Name: Diving Flashlight Shell Material: Aluminum Alloy Mode: Off - Strobe- Off - High Light(700LM) - Low Light(350LM) Light Color: White Switch Type: Magnetic Twist Switch Waterproof: IPX8(Underwater 50m) Battery Type: 1 x 3.7V 26650 Lithium Battery(Not Included) Size: 13.4cm x 4cm/5.28" x 1.57" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Diving Flashlight 1 x Glove