The ReVolt headlamp is a rechargeable headlamp that can be powered by either three Black Diamond NiMH AAA or three standard alkaline batteries (included). The ReVolt automatically detects which batteries are loaded, and rechargeables can be recharged via a USB cable. The ReVolt features one TriplePower LED, two SinglePower LEDs, two SinglePower red LEDs, and a battery level/charge status indicator. Settings include full strength in proximity and distance modes, dimming, strobe, red night vision and lock mode. It's protected against splashing or sprayed water from any angle (IPX 4). Wt: 3.4 oz (with batteries).