Introducing the Nightstick NSP-4640B - your ultimate helmet-mounted, multi-function flashlight. Outclassing its competitors, the 4640 shines with an impressive 360-lumen, tightly-focused beam reaching distances up to 218 meters (or 715 feet). The device also offers a lower 180-lumen setting to extend usage time.Besides, the 4640 also offers a 30-lumen Survival Mode lasting for 30 hours, providing an essential feature for emergencies. Its versatile design integrates with any Fire Helmet or side-brim hard hat, regardless of the brim\'s orientation. This is due to our adjustable multi-angle mount, enabling the user to precisely position and angle the light according to their needs. This important feature negates the need to work around other mounted equipment, such as goggles or face shields, and illuminates your focus area effectively.Rated IP-X7 in waterproofing, the 4640 satisfies all requirements of NFPA-1971-8.6 (2013), promising high-level performance in extreme conditions. Powering the device are 2 included CR123 batteries, providing you with a reliable and unmatched hands-free light source.