The Black Diamond Storm 450 Headlamp has all of your hands-free lighting needs covered! It cuts through the darkness with 450 lumens of bright light, and improved optical efficiency not only provides brighter light at 450 lumens but also saves battery. PowerTap technology offers instant transitions between full and dimmed power, while a secondary switch offers easy mode selection. Settings include full strength in proximity and distance modes; dimming mode; strobe mode; red, green, and blue night-vision modes; and lock mode. Regulated for constant light output. Multifaceted optical lens design. Brightness Memory lets you turn the light on and off at a chosen brightness without needing to cycle through the settings again. 6-setting, 3 LED battery meter. Waterproof and dustproof IPX67-rated housing withstands immersion to 1 meter for up to 30 minutes. Plus, it's lightweight and compact for well-balanced comfort. Powered by 3 AAA batteries (included) or the BD 1,500mAh lithium-ion battery (not included).Manufacturer model #: BD620671. 450 lumens on maximum setting Improved optical efficiency provides brighter light and saves battery PowerTap technology for instant transitions between full and dimmed power Secondary switch offers easy mode selection Full strength in proximity and distance modes Dimming and strobing modes Red, green, and blue night-vision modes Lock mode Regulated for constant light output Multifaceted optical lens design Brightness Memory lets you turn the light on and off at a chosen brightness 6-setting, 3 LED battery meter Waterproof and dustproof IPX67-rated housing Lightweight, compact, and well-balanced Powered by 3 AAA batteries (included) or the BD 1,500mAh lithium-ion battery (not included)