DIMPLES EXCEL Bike Light Set 7 LED Silicone, White Headlight and Red Taillight SUPREME QUALITY CIRCUIT BOARD: There are numerous kinds of silicone bike lights on the market and they all look similar with silicone housing on the outside. In fact, they are vastly different on the quality inside, especially for the diver board. Equipped with well-designed intelligent circuit board, Dimples Excel 7 LED silicone bike light provides you with durable and reliable service even at the fastest movements and the most difficult situations. TAILHIGHT AND HEADLIGHT BOTH WITH 7 LED AND 3 MODES: Package includes: 1 x white LED front light and 1 x red LED taillight. Both of lights have 7 LEDs, 5 LEDs on the front and 1 on each side. The switch button is on the side and the modes go in a circle from flashing-strobe--constant. EXTRA LONG RUNTIMES (50HOURS): Powered by 3 pieces of AAA batteries with an extra-long runtime of at least 50 hours, detailed instructions on how to place batteries and how to attach lights on crossbars inside the packaging (Please notice that batteries are not included in this package, AAA battery is very common can be easily purchased from any physical stores). UNIVERSAL FITS: This set of bicycle lights fit all bikes. The white front light fits nicely on the handlebars. The red taillight fits on seat-posts. It is very easy to install on bike and take it off within seconds. A TOUGH AND DURABLE GEAR: The core-container is made of strong transparent plastic and very well sealed. It is water-resistant for daily use and rain-proof on rainy days. However, they cannot withstand heavy rains and please do not put it into water directly. It is not water-proof, and it is not for underwater and diving purpose.