Black Diamond Storm 450

Black Diamond Equipment says:
Dual-Fuel: Maximum flexibility to utilize either Alkaline cells or a rechargeable Lithium Ion BD 1500 battery (sold separately)450 Lumen max outputIP67: Waterproof-Tested to operate at least 1.0 meters underwater for 30 minutesBrightness Memory allows you to turn the light on and off at a chosen brightness without reverting back to default settingSettings include full strength in proximity and distance modes, dimming, strobe, red, green and blue night-vision, and lock modeMultifaceted optical lens designDual-Fuel: Power with three AAA Alkaline cells (included) or the rechargeable BD 1500 Li-ion battery and charger (purchased separately) for maximum flexibility | Black Diamond Equipment Storm 450 Headlamp Headlamp, in Black