The Energizer Vision Ultra HD Headlamp brings outstanding performance in a compact design. The headlamp with innovative features such as Energizer Smart Dimming technology that controls light intensity and VisionGuard technology that gradually increases the light intensity to prevent a high beam straight in the users' eyes. In addition to the white LED, this light has green and red LEDs which enhance night vision for outdoors activities. With an adjustable head strap, water-resistant design and pivoting head to direct light exActly as needed. Operates on 3 x AAA Energizer Max (Batteries Included). Hands free design with LED Technology Energizer Smart Dimming technology to control light intensity VisionGuard protects vision by gradually increasing light intensity Next Push Off to avoid unnecessary switch cycles Red and Green LEDs for night vision. Low battery indicator Water-resistant with shatterproof lens. Impact resistant, drop tested to 1m Water Resistant IPX4, works after splashing