Regardless of the season or environment, the 2690 Heads-up Lite™ won't leave you in the dark. with 74 lumens of LED light, 11 hours of battery run time and weighing in at 4.1 ounces, it's brighter, more efficient, compact and lighter than other headlamps in its class. It's abundant safety approvals (class I II III Division 1) allow for use in some of the most volatile of environments. the no-nonsense rotary bezel switch is easy to operate, even when wearing bulky gloves. Pelican™ HeadsUp Lite™ Head Lamp, Series: 2690, 4.5 VDC, LED Bulb, 74 Lumens, 10000 hr Average Life, AAA Alkaline Battery, 3 Batteries, Black, ABS Housing Material, IPX7 Enclosure, 2.81 in L Dimensions