Coast HL7R Rechargeable Headlamp 19274Durable, impact resistant, black composition housing. Black and red adjustable elastic head strap. Hard hat compatible. Adjustable spot to flood beam. High mode: Up to 150 lumen output with 114m beam distance and 3 hour runtime; Low mode: 3 lumen output with 21m beam distance and 38 hour, 30 minute runtime. Features handy dimming function which allows you to adjust your light output to just the right level for your application. Uses three AAA