AAA Battery: 180 lumens output achieved with just a single widely available AAA battery. Portable: Easy to carry in a pocket or clipped to a hat brim with its lightweight and palm-sized Aluminum body. Simple Operation: Tail switch operation for momentary/constant on and quick mode changing (5/180 lumens). Anti-Slip: The double helix knurling on the body provides a unique style and a solid grip that prevents slipping. ✔ The I3T EOS is a slim tail switch flashlight powered by a single AAA battery with a max output of 180 lumens. ✔ It is equipped with an excellent LED paired with a TIR optic lens producing a soft and balanced beam. ✔ It is also equipped with a dual direction pocket clip for multiple carrying options such as a pocket or backpack strap. ✔ The I3T is an incredibly convenient illumination experience to take with you everywhere.