Check the listing for details. Trustfire 2300LM Diving Light Scuba Flashlight Underwater 100M Waterproof Torch. Color: Black, Condition: New. Listed at 49.99 USD. The flashlight can be firmly fixed on the wrist to prevent the flashlight from falling off and falling into the water.PRODUCT FEATURES 01. Use internationally patented LEDs with a lifespan of 50,000 hours, 02. Maximum luminous flux 2300LM; 03. Constant current circuit, constant brightness; 04. The shell is made of aviation aluminum and CNC finished; 05. Anti-wear treatment with military grade three anode hard oxidation on the surface, 06. The stainless steel pressure ring effectively protects the core part of the flashlight head. 07. Magnetic control rotary switch; 08. Battery reminder function (battery voltage is below 3V, the main light flashes slowly three times, the battery is too low, it is a reminderUsers need to replace the battery in time); 09. Use one 3.7V rechargeable ion.