The Bontrager Flare R USB (Universal Serial Bus) Rear Light is an eye-catching tail light that has your back going through some busy traffic of dark non-lit roads. Make every ride safer with the Flare R & the safety of 65 Lumens of visibility. The balanced optics allow for a wide beam & focused light beams for optimum lighting. Powerful, compact, & rechargeable, Flare R is the first light to be designed from the ground up for daylight visibility. The light boasts a wide ranging 270 degrees of visibility that can be seen from 2km away, which means even pulling in out of roads, cars & other road users will be able to see you in all directions. Key Features 5 modes: 3 day & 2 night, ideal for anytime riding Up to 65 lumens, essential to be seen output, visibility from over 2 km day or night 270 degree visibility near & far Battery save mode at 5% life helps to ensure a safe ride home with a depleted battery’s Customer Review Outstanding daytime flash ★ ★ ★ ★ ★ “ This little light has one outstanding feature: an extremely bright daytime flashing mode. For anyone commuting on a busy main road in murky weather (or in low sunlight on wet roads), this is a life-saver! There are also two very small side panels of yellow clear plastic on either side of the main red one: these increase visibility from the side. Clever idea!”