Haz-Lo HeadlampIntrinsically safe for use in atmospheres containing hazardous gases, vapors and liquids. Push-button switch provides easy operation when wearing heavy gloves. Impact resistant housing. O-Ring sealed, water resistant. Battery Size: AA; Battery Type: Alkaline; Beam Color: White; Body Material: ABS; Bulb Type: Super High-Flux LED; Color: Yellow; Includes: Elastic Head Strap, Rubber Hard Hat Strap, Batteries; Lamp Life: 50000 h; Length: 2.550 in; Lens Material: Polycarbonate; Lumens: 34.00 [Max]; Number of Batteries: 3; Packing Type: Blister Pack; Run Time: 11.00 h [Max]; Strap Material: Elastic & Rubber Hard Hat Straps; Weight: 4 1/2 oz.