This is by far the best flashlight i have ever owned. It has a strobe mode, SOS mode, and the standard low; medium; and high beams. It also has a turbo mode which is a whopping 210 lumens! It throws the beam very far and i can light up the woods around my house with it. For shuch a small package this little light is a power house, and it only takes 2 AA's. I have taken this light camping with me multiple times and i love it because i dont have to worry about walking in the rain or dropping it in water, as it is water resistant to a meter. It comes with a pocket clip and a spare one (it also comes with spare o rings and rubber clicker) but i just use the case with the belt loop. It is also a very sturdy case and it comes with a velcro strap that you can put around your belt or you can use the permanent belt loop that you have to put on with your belt when you are getting dressed. i love this feature because when i am in a hurry i just use the velcro loop. BUY THIS LIGHT!!!