The See.Sense. ICON2 Rear Light pumps out 300 lumens and can be seen from 3km away, however, its real point of difference is the fact that it detects when more brightness might be required for extra safety and responds accordingly. Whether slowing down for a junction, speeding downhill or if there is a car approaching, the ICON2 senses when to increase its output.
The light comes with attachments allowing installation vertically, horizontally, aero or normal posts, chainstays, headtubes. There is no clip / bag mount included.