2 of 2 people found the following review helpful
does what it needs to do well !!!,
Verified Purchase(What is this?)
This review is from: Blackburn Mars 4.0 Rear Light 2012 (Sports)
bought this light as it fits on an aero seat post.. fitted with no issues. Single bright bulb rear facing, 2 side facing bulbs, would have preferred these to be rear facing but light works well.