1. High effective and super bright XM-L2 LED, 5 LED flashlight, 3 lighting modes to fit your different needs, high light/ low light/ strobe. 2. Professional diving flashlight, IPX8 waterproof and can dive underwater 80 meters. Three-layer waterproof ring, the waterproof effect is better. 3. 6061 Aircraft-grade aluminum alloy with hard-anodized finish technique; anti-abrasive, drop-resistance and waterproof diving flashlight.Tough and Reliable. Specification Light Source: 5* XM-L2 LED Case Material: 6061 Aircraft-grade Aluminum Lens: Toughened Glass Lens Cup Material: Aluminum Alloy Reflector Cup, smooth cup Switch: Button Switch Lighting Modes: High/ Low/ Strobe (long press button) Waterproof Rate: IPX8 Diving Depth: Underwater 80 meter Power Supply: 4* 18650 Li-batteries Net weight: about 480g Maintenance Tips 1.Do not shine the light beam directly into eyes. 2.Do not installing the battery reverse polarity. 3.After use you should wash your diving lights thoroughly in fresh water along with the rest of your equipment. 4.Clean, lubricate and inspect the O-rings, that would better for the flashlight's long-term use. 5.Clean the battery and electrical contacts. 6.Store your diving lights without batteries to prevent any possible corrosion from battery leakage. 7.Always recharge the battery when the light goes dim, thus overwork of batteries can be avoided and lifetime could be extended. 8.Store your dive lights in a cool dry place out of direct sunlight. This diving flashlight is mainly used for diving works, underwater fishing operations, salvage operations underwater archaeological work, teaching Scuba diving. It's also an ideal choice for outdoor activities, such as fishing, diving, swimming, hiking, caving and seeking survival without fear of rainy .