INTRINSICALLY SAFE LED HEADLAMP This Intrinsically Safe Class I, II, & III / Division 1&2 Spot Headlamp is designed specially for hazardous locations-where explosion risk due to fine dust or vapors is high. This rugged headlamp is impact resistant, waterproof, and dust proof, making it ideal for a wide variety of demanding applications. Powered by 3 AAA batteries, this headlamp delivers up to 12 hours of run time and features two intuitive high/low modes. This intrinsically safe headlamp directly attaches on front or back accessory mounts exclusively on Klein Hard Hats and Safety Helmets –without a strap!