The Streamlight MicroStream is a compact lightweight 45 lumens C4 LED pen light flashlight designed for EDC use.   It features a push button tail cap switch, momentary or constant on operation, a combination pocket/hat clip for hands-free use, with great brightness and run time considering its compact size.
 
The Microstream features an aluminum housing with Type II Military Spec anodizing, rendering it extremely durable and abrasion resistant -it’s powered by one AAA alkaline battery and comes with a high-strength “break away” safety lanyard.
 
The light features a tail cap switch, momentary or constant on operation, with a white LED that delivers 45 lumens, 41m beam, and an average run time of 2.25 hours
 
The Microstream measures 3.6” x 0.60” inches, and weighs 1.10 oz. with its AAA battery.