Flashlight Energizer Vision HD. Our most advanced flashlight line ever. Durable aircraft grade aluminum construction. Powerful wide beam for exceptional vision. Smooth digital switch to allow easy access to light modes. Versatile, multiple modes. Strobe mode. Daylight lighting. Weather resistant (IPX4). Impact resistant up to 1 m. Up to 2-1/2 hours of light. Requires 3 AAA alcaline batteries (included).