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 to the LED and less power for extending the burn time. This fully accessorized work light can be mounted on a hard hat or fire helmet or carried in your pocket or tool box. A necessity for confined space workers, utilities, municipalities, firefighters, safety inspectors, etc. UL and CSA Class I Div 2 rated for use in hazardous locations.