The 2000 lumens, 3 LED array provides brightness that is hard to match underwater. A compact anodized aluminum body, lantern grip and 3 position switch provide ergonomic operation while the wide angle beam offers maximum coverage area, great for videography. The Meganova is waterproof to 400 feet / 122 meters. (Important: to maintain waterproof seal, be sure to clean and remove debris from O-rings on body (battery compartment) and charger port cover and lightly apply silicone grease before use. The rechargeable lithium ion battery allows 2 hours burn time at full power and 12 hours at 30%. A flashing strobe feature is incorporated into the switch design for safety and signaling needs. The lightweight nylon carry bag provides storage options for the torch, charger and multi AC adapters. When not in use, or for travel, unscrew battery slightly to prolong battery life and avoid accidental turn on.