This 3AA Haz-Lo® Headlamp meets and is approved for, Class 1, Division 1 hazardous locations. Headlamp is safe to use in atmospheres that contain hazardous gases, vapors and liquids and it provides up to 11 hours of run time with declining output to 25% intensity. Headlamp is tough too, featuring an impact-/water-resistant housing and unbreakable polycarbonate lens. Comes with a rubber hard hat strap and elastic head strap. Uses 3 AA alkaline batteries (included).