Ultra-bright and intelligent: - 2800 lumens - Longer burn time, greater visual comfort and less manual operation with REACTIVE LIGHTING mode, which allows the light sensor to automatically adjust brightness and beam pattern, optimizing battery usage - Choice of two lighting modes: REACTIVE LIGHTING or CONSTANT LIGHTING and five lighting levels that can be programmed manually - Survival mode provides a minimum light level for up to 72 hours Waterproof and durable: - Dustproof and waterproof in up to 1 meter of fresh water for 30 minutes - Aluminum lamp body provides excellent fall, crush, and impact resistance Multi-beam lighting adapts to a wide variety of situations: - Close-range lighting: low-intensity flood beam maximizes burn time - Proximity lighting: mixed beam with brightness suited for comfortable proximity vision - Lighting for movement: mixed beam includes focused lighting that allows for greater ease of movement - Lighting for rapid movement: more powerful mixed beam allo