Streetwize Bike Laser Light Designed to improve road safety, the Streetwize LED Laser Bike Light projects two laser beams either side of your bicycle to create a virtual cycle lane that warns other road users to keep their distance. It also has a standard rear red light that can be set to constant, flashing or fast flickering. 2 x laser guideline lights, with constant and flashing modes Standard, flashing and fast flickering rear light modes 260˚ visibility Water resistant Requires 2 x AA batteries