The 2-watt LED lasts for thousands of hours and maintains constant brightness for over 80% of the battery life. Unlike conventional lights the solid state LED will not break when dropped. As a result, you save real money on the cost of battery and lamp replacements. A twist of the bezel zooms the light between an intense narrow beam and a broad illuminating beam using the unique Projection Optics design. By clicking the switch rapidly one can switch between full power and less power for extending the burn time. The 90° lamp head rotates in any direction to focus light exactly where you need it. Simply lay the light down and twist the light head to point at your work. A sturdy unbreakable nylon clip is included so that the 4AA Right Angle eLED® Zoom can be clipped to a coat pocket, safety strap, or belt. Once again twist the head to light up your work. For straight on illumination the right angle section can be removed. For easy access a stainless split ring and snap are included for attachment to clothing loops and button holes. The high impact ABS and polycarbonate case is o-ring sealed and waterproof use in the rain and submerged illumination. A necessity for confined space workers, utilities, municipalities, firefighters, safety inspectors, etc. UL rated for use in hazardous locations.