Nite Ize Under Bike Seat BikeLight LED , cyclists who ride at night/early morning know how important it is to see and be seen by their fellow bicycle riders. That's why Nite Ize designed their BikeLit Light to not only light your way, but also immediately signal your bike's front/rear orientation to oncoming traffic. Like the universally recognized headlights and taillights of a car, the BikeLit Seat Lite comes in two colors: white attaches to the front brake cables, (illuminating the path ahead and letting people know you're coming their way), and red locks under the back of the seat (clearly marking the rear of your bike). Attachment is quick and eas, no tools required. The long-lasting L.E.D. bulb of our NiteIze BikeLite emits a bright, ambient glow that can be seen up to a mile away. Two modes to choose from steady beam and continuous flash. Water-resistant, it's powered by two replaceable batteries (included), to keep you and your bike safely seen in the dark for years to come. For a full line of Nite Ize Flashlights and other products by Nite Ize on sale please visit the Nite Ize page on our website. For more brand name flash lights please visit our flashlights store section.