The C-Strobe is activated manually with an easy twist on/off activation and boasts 3 modes of operation: strobe, steady-on, and SOS. The slim, lightweight and versatile design fits easily in a pocket or hangs discreetly when attached to a life jacket or backpack. The light also comes with a clip designed to conveniently slide over your inflatable life jacket’s oral inflation tube for storing your light inside your life jacket.