It might be small, but the F2 is bright! With its 14500 lithium ion battery and Samsung LED, this amazing little light will go for hours if needed or blow your retina's out with nearly 900 lumens. The F2 was created to go easy on the wallet and still have all the quality you've come to expect from Focusworks.
Samsung LH351d 5000k LED
Qlite driver (simple low-medium-high operation)
Grade 5 titanium pocket clip
Runs on a 14500 lithium ion rechargeable battery
Weight with a battery 75g
4-1/16" (104mm) x 7/8" (22mm) diameter
 
Comes with 14500 Battery and charger