Boasting 4200 lumens & 6 CREE® LEDs at 6000k; the Niterider Pro 4200 Enduro offers 4 brightness settings & a daylight flash mode that are factory-tuned to optimize riding in any condition. Paired with a long-lasting 8-cell battery, that doubles as a USB (Universal Serial Bus) portable charger, this lighting system is perfect for long night rides, high speed MTB descents or backcountry touring. Ultra bright 4200 lumen output 8 Cell Li-Ion battery, doubles as a USB (Universal Serial Bus) portable charger Remote switch for ease of operation The preferred light for serious MTB riders Highly durable light housing with Dupont® Fiberglass reinforced nylon Perfect for handlebar mounting FL 1 Standard IP64, dust & water-resistant 4 steady light modes, 2 daylight flashes & S.O.S. Custom 3 cone dual-beam reflectors utilizing 6 CREE LEDs at 6000k Comes with a convenient nylon storage pouch Lumen Output:4200 Run Time:1:30 16:30hrs Charge Time:5:00hrs Weight:839g Battery:8 Cell Li-Ion USB