While I normally don't like to ride at night ... at all ... I ended up needing to go about a mile and half after dark yesterday. I put on my little blinky lights and set out. I was really surprised by how well the blinking lights on the 1M worked! They annoy the crap out of me during the day (you can turn them off but it's a multi-step process) but they actually made me much more visible at night, especially from the side. And going faster meant I was a moving target for a few less seconds.