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Fenix BC21R Rechargable Bike Light

CLICK HERE to Preorder the New Fenix BC21R

Flexible Power Application with Carry-on Convenience!  The new Fenix BC21R Rechargeable Bike light is an integrated yet versatile bike light which delivers a maximum 880-lumen neutral white light.  The BC21R features four output modes plus Flash to enhance your cycling activities.  The built-in side red light assists in riding safety.  The quick-release bike mount makes it easier to mount or dismount the light.  Because the BC21R is powered by one standard 18650 rechargeable battery or two non-rechargeable CR123 battery, you can easily dismount the light, change the batteries, then continue on those long rights.  This well-designed bike light goes anywhere for any activitiy. Perfect for road racing, bicycle riding, and urban commuting.


  • Use one Cree XM-L2 T6 neutral white LED with bettery color rendition
  • Output Modes
    • Turbo: 880 Lumens for 1 hr. 20 min.
    • High: 380 Lumens for 4 hrs. 30 min.
    • Mid: 200 Lumens for 8 hrs. 30 min.
    • Low: 100 Lumens for 15 hrs. 50 min.
    • Flash:  380 Lumens and 100 Lumens
  • Compact and handy
  • Optimized Dual Distance Beam System
  • Maximum Beam Distance:  410 feet (125 meters)
  • Micro USB direct charging
  • 18650 battery can be charged INSIDE the light using the included USB cable. 18650 battery can be charged in an external charger also.
  • Multiple power sources
  • One switch, user-friendly operation
  • Built-in over-charge, over-discharge protection
  • Battery Level Indicator
  • Low-power warning reminds you when battery replacement is needed
  • Over-heat protection to avoid high temperature of the surface
  • New type quick-release bike mount for easy and secure adjustment of the light direction
  • Digitally regulated output maintains constant brightness
  • Made of aluminum alloy with excellent heat dissipation
  • Waterproof to IPX-6 standard (thick fog or heavy rain. **Please ensure the USB cap is securely covered

Batteries Used (18650 Battery Included)

  • One rechargeable 18650 battery (accepts Tenergy, Fenix ARBL2M, ARBL2, ARBL2P, or ARBL2S).  Each has a different mAh.  The higher the mAh, the longer the runtime between charges.
  • Two non-rechargeable CR123A batteries.  (Fenix does NOT recommend rechargeable CR123 batteries)
  • If you want to charge the 18650 batteries OUTSIDE of the bike light body, you can use one of these chargers:  ARE-X1, ARE-C1, or ARE-C2



  • 1 Fenix BC21R Bike Light
  • 1 Fenix 3.6V/2300mAh Rechargeable Battery
  • 1 BC21R Bike Mount
  • 1 USB charging cable
  • 1 Bike mounting shim
  • 1 Bike mounting strap
  • 1 Spare o-ring
  • 1 User Manual
  • 1 Warranty Card

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