Diving flashlight LED type: SSC P7 LED / 5 work modes((Low 20% brightness -- middle 50% brightness -- high 100% brightness --Strobe -- SOS)) Material: Aluminum alloy Battery: 1X 18650 Battery(not included) Switch: Magnetron On/Off On/Off Color: Black Lens: Coated Glass Lens Reflector: Aluminum Textured/OP Reflector