

I've replaced the batteries multiple times, and each cycle is the same - very short lifespan. The Storm375’s PowerTap Technology enables you to quickly and easily access maximum brightness with the touch of a finger. I had high expectations of Black Diamond (based on prior purchases), but this headlamp's battery-life is unusually short. Signature features like smooth PowerTap, dimming, flood and spot lighting, and a red. With a streamlined light head, a dedicated mode button and a nice bump in lumens, the Storm 400 headlamp is the most advanced version ever.
BLACK DIAMOND STORM HEADLAMP BATTERY CHANGE FULL
The headlamp has our Brightness Memory feature, which allows you to turn the light on and off at a chosen brightness without reverting back to the default, full power setting. Black Diamond has taken its already impressive flagship headlamp and improved it. The Storm375 also has three different colored night vision modes and peripheral white lighting for close-range activities like carefully re-racking for the final summit pitch in the dark. In addition, the updated optical efficiency not only provides brighter light, but also saves battery life that you can now easily track with a six-setting, three-LED battery meter. With a new, compact body, the Storm375 is more ergonomic, and the updated user interface includes a secondary switch for easy mode selection. The Storm375 is engineered for epics in all conditions, featuring a robust waterproof/dustproof housing and 375 lumens of bright light. The Storm 400's PowerTap Technology enables you to quickly and easily access maximum brightness with the touch of a finger.Featuring a more compact design, updated user interface, and a multi-faceted optical lens design that saves battery life and provides 375 lumens of powerful light, the Storm375 is ready for any mountain mission. The headlamp has Black Diamond's Brightness Memory feature, which allows you to turn the light on and off at a chosen brightness without reverting back to the default, full power setting. The Storm 400 also has three different coloured night vision modes and peripheral white lighting for close-range activities like carefully re-racking for the final summit pitch in the dark. In addition, the updated optical efficiency not only provides brighter light but also saves battery life that you can now easily track with a six-setting, three-LED battery meter. Black Diamond and Petzl both tend to come out with 'new' models every 6 mo to a year and the only thing that really changes is the lumen output, so getting 'last years' model is really.

The difference in the options in the storm line are primarily the lumen output rather then any key features. PowerTap technology allows instantaneous changes in power setting.
BLACK DIAMOND STORM HEADLAMP BATTERY CHANGE SERIES
With a new, compact body, the Storm 400 is more ergonomic, and the updated user interface includes a secondary switch for easy mode selection. The storm is a series of models from Black Diamond. Operating on just 3 AAA batteries (included), the Black Diamond Spot 350 Headlamp. The Storm 400 is engineered for epics in all conditions, featuring a robust waterproof/dustproof housing and 400 lumens of bright light.
