Apex 550 Lumen LED Headlamp - BlackThe brightest headlamp in our professional series, the Apex, has been a favorite of extreme outdoorsmen and cavers for years.The pinnacle of waterproof LED headlamp design, the Apex incorporates a single regulated Maxbright LED plus four regulated Ultrabright LEDs. The Apex is capable of a powerful spot beam or a bright flood, and two switches make changing modes intuitive.Proprietary heatsink technology allows the LEDs to burn brighter and longer.Features:Power: 550 LumensLamp: 1 Maxbright LED (regulated), (dimmable)4 White Ultrabright LEDs (regulated), (dimmable)Burn Time: 150 hoursBatteries: 4 AA Alkaline or LithiumWater Resistant: IPX7Weight: 9.8oz / 279gWARNING: This product can expose you to chemicals including BISPHENOL A (BPA) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.