The Energizer Vision HD Metal Rechargeable Light is one of the company's best and brightest metal flashlights! Up to 15X brighter than standard LED technology, this Energizer rechargeable flashlight offers exceptional light output for today's tasks and tomorrow's emergencies. Seven lighting modes adjust for outdoor adventures and dark situations, from wide light to a targeted beam, plus Low and Strobe modes. The light allows you to charge your smartphone via a USB output - and still delivers powerful light even after a full smartphone charge. This flashlight delivers a powerful beam and high-definition vision.The aircraft-grade aluminum body is tough-and it should be-Energizer designed this USB rechargeable LED flashlight to last 20 years (estimated lifetime based on typical consumer usage patterns). Because this isn't just a charging flashlight-it's an innovative lighting solution. Notes: Light must be turned off while charging. Based on an average smartphone battery of 1810 mAh capacity.