Industrial and construction site applications are some of the most demanding environments for portable lighting devices which are often not up to the task. The Dorcy(R) Pro Series headlight is anything BUT delicate and fragile. Starting from the bottom up, the headlight system was designed using the latest engineering techniques, the best possible materials and the latest technology. The result is the most technologically advanced and most rugged and durable headlight ever made. It even passes a drop-test of two meters and has an IPX 4 water-resistant rating. This light is hard hat ready--more advanced, better constructed and well suited for the heavy-duty work life! And, to make things even better, it can swivel 180deg , has strong magnets on the back, a removable lens, strap plus an adjustable mini tripod!Housed in a durable tough-body construction with a matte finish, this headlight has three levels of brightness and an automatic built-in battery power indicator feature that keeps you informed. Beam distance is 100 meters. Run time ranges from 46 hours on low, 11 hours on medium and 8 hours on high. The built-in safety lock/off feature prevents accidental turn on when stored. The light runs on 2 AA batteries (included), is 3.25" x 2" and weighs 6.7 ounces with batteries. This unit comes with a lifetime warranty on any manufacturing defect.