Streamlight 69331 Vantage II 350-Lumen Helmet Mount Flashlight,

Attaches securely to helmet, above or below rim in seconds; large easy off switch located on rear of light High: 350 Lumens, low; 135 lumens Safe off feature prevents accidental activation, saves batteries; Uses one CR123A lithium battery, included Meets requirements of NFPA 1971-56 (2013) IPX 7 waterproof to 1M for 30 minutes; 1M impact resistance tested