Purpose-designed for jobs, Law Enforcement, Hunting, Exploration, Security, fishing,Search and Rescue. Intelligent circuit control, Telescopic Zoom,4 modes. The headband can stretch adjust according to the size of your head. Conveniently put on or take off. The red indicator light on the battery holder plays a good warning role in night walking or cycling. Utilizes the latest T6 LED for a maximum output of up to 28000-30000 Lumens.