I use a Cygolite Hot Shot on my seat post and Serfas Raider on my left drop both (I don't use the drops often) flashing at all times. The Hot Shot is a very focused light and very bright. I really like the Serfas, easy to mount most anywhere, and it is bright enough for me. I like having more than one tail light. On my bar I use a Niterider Lumina 650 or a Lumina 500. They really get the attention of drivers when flash during the day. I really like the 650. At night I run on medium 400 lumens and it goes for over 3 hours. I am currently looking for a reflective vest. A lot of options.