This headlamp offers exceptional light output and a long runtime, making it ideal for utility and electrical work. Light is intrinsically safe for use in environments containing hazardous gases, vapors and liquids. Unit features an impact-resistant housing and an unbreakable polycarbonate lens. LED delivers up to 120 lumens of light. Unit comes with both an elastic head strap and a rubber hard hat strap. Light runs up to 11 hours on three AA batteries (included). UL listed Class I, Division 1.