NiteRider's Mako 150 features a bright 150 lumen Cree LED, steady and flashing modes (for increased daytime visibility) and "gills" that emit a red light so it can be seen from the side. This sweet light attaches to your handlebars without tools. Plus, NiteRider's CherryBomb Taillight keeps you safe and seen with a 1/2 watt high-power LED along with 2 smaller LEDs. Steady and flashing modes allow for run times up to 40 hours. Plus, 2 AAA batteries are included.