.Apex LED Headlamp – Black/Grey.The 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.Specifications:.Power: 650 Lumens.Lamp: 1 Maxbright LED (regulated), (dimmable), 4 White Ultrabright LEDs (regulated), (dimmable) .Burn Time: 12 Hours.Batteries: 4 AA Alkaline or Lithium (Included).Weight: 9.8oz or 279g.Water Resistant: IPX7.Waterproof Housing.5 Modes: Spot High, Spot Low, Flood Flash Beam, Flood High and Flood Low.Warranty: Lifetime.WARNING:. 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. .Lumens: 650.Battery Type: Alkaline.Batteries Included: Yes.