Boasting 4200 lumens and 6 CREE LEDs at 6000k; the Pro 4200 Enduro offers 4 brightness settings and a daylight flash mode that are factory-tuned to optimize riding in any condition. And paired with a long-lasting 8-cell battery, that doubles as a USB portable charger, makes this lighting system perfect for long night rides, high speed MTB descents or backcountry touring.