Guardian Light

Light, Bright and tough, these compact (Just 1 5/8 x 1 1/2 x 1/4 ) LED lights come with a handy clip and include two readily available lithium coin batteries that last a 100 hours in steady on mode, or flip the batteries and it flashes for 250 hours. Omni-directional light can be seen in all directions. These are easily clipped onto the back of a pfd.
Clamshell packaging.