Black Diamond Storm 450

Black Diamond Equipment says:
Dual-Fuel: Power with three AAA Alkaline cells (included) or the rechargeable BD 1500 Li-ion battery and charger (purchased separately) for maximum flexibility 450 Lumen max output IP67: Waterproof-Tested to operate at least 1.0 meters underwater for 30 minutes PowerTap(TM) Technology allows instant transitioning between full and dimmed power Brightness Memory allows you to turn the light on and off at a chosen brightness without reverting back to default setting Settings include full strength in proximity and distance modes, dimming, strobe, red, green and blue night-vision, and lock mode Multifaceted optical efficiency lens technology Dual-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