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Black Diamond says:
Now running on our new modular BD 1800 rechargeable battery, the Black Diamond ReVolt350 is a powerful, versatile and rechargeable headlamp that has now been fully redesigned. Now producing 350 lumens of light, we’ve also updated the user interface by adding a second switch for easy lens mode selection. In addition, the improved optical efficiency provides brighter light with more peak intensity, and you can track the battery life with a six-setting, three-LED battery meter. The ReVolt350 easily spots anchors while you rappel in the dark while its proximity lighting gives you a large area of light for hiking down the trail. Brightness Memory gives you the option to set the light's brightness when first turned on, plus PowerTap Technology makes for instant brightness adjustment settings. The ReVolt350 can run on standard AAA batteries or the included BD 1800 Battery.