The Knog strobe has a specific purpose - to make sure you are visible to traffic while keeping an eye on your budget. It is amazing that Knog can produce an LED red light with an output of 25 lumens for a visibility range of 600 meters at this price. Other features include 4 modes - steady and 3 strobe options with high burn times of 50-80 hrs depending on the mode.
Powering the light source is taken care of by 2 coin cell CR2032 batteries which are included. The complete light weights in at a scant 19 grams