The Storm 450 headlamp can handle any type of extreme environment, as it is dustproof and can be submerged under 1 meter of water. Its light beam, with a maximum intensity of 450 lumens, has short and long range modes (85m at full power). In addition, the light output can be quickly adjusted with a simple tap of the finger, thanks to PowerTap technology. Technical specifications: Maximum intensity: 450 lumensTwo types of power: 3 AAA alkaline batteries (included) or BD 1500 Lithium-ion rechargeable battery (sold separately)PowerTap technology: easily switches between full power and dimmed powerSettings include full power, dimming, flashing, night vision and lockoutLock mode: ensures it doesn't turn on in the bagNight vision: red, blue or green lightIntensity memory allows you to turn the headlamp on and off, keeping the last settingIP67: waterproof tested to operate at least under 1 meter of water for 30minBattery life: 5 hours at full power Headlamp Black Diamond ---Storm 450 Creek Blue