ThorFire PF02 Cree LED Pen Flashlight Tactical EDC Penlight Use Two AAA battery Marker Pen sized inspection flashlight, PF02 is brighter and it works longer than PF01 Features CREE XP-G2 R5 LED with a lifespan of 20+ years of run time. Always start on Moonlight - Protect your night vision-- Great as a night light. Dimension: 5.7'' (Length) * 0.6''(Body Diameter); Runs on two AAA batteries(NOT Included) ThorFire provides customers with 40 days money back guarantee