Fenix BC45R Dual-Distance Mountain Bike Light with Remote Switch

The Fenix BC45R is a high-performance mountain bike light engineered for technical night riding. Its dual-beam system produces 3,300 lumens with a 938-foot beam distance, allowing independent or combined activation for precise light control on any terrain. The wireless remote switch lets you adjust output without leaving the handlebars, while the OLED display shows battery level and mode status in real time. Powered by two included 3,400mAh rechargeable 18650 batteries, the BC45R delivers up to 59 hours of runtime and charges quickly via USB-C. The rugged A6061-T6 aluminum construction is drop-tested to 1.5 meters and IP66-rated for water and dust resistance, handling mud, rain, and rough impacts with ease. A shock-proof quick-release mount secures to handlebars between 28–35mm without tools, while the flashing safety mode enhances visibility during transitions. Multiple output modes cater to different riding styles: high-beam settings reach 2,200 lumens for 5.25 hours, while eco mode extends runtime to 59 hours at 50 lumens. The turbo mode unlocks the full 3,300-lumen output for demanding terrain. Compatible with Fenix 18650 batteries or CR123A alternatives, this light combines power, durability, and intelligent control for serious mountain bikers.

Specifications

Outputs

• High-Beam Outputs
• High: 2200 Lumens, 5.25 hours, 883 feet, 18211 candela
• Med: 800 Lumens, 6.25 hours, 571 feet, 7651 candela
• Low: 200 Lumens, 16.75 hours, 279 feet, 1820 candela
• Low-Beam Outputs
• High: 1500 Lumens, 5.5 hours, 466 feet, 5049 candela
• Med: 800 Lumens, 5.25 hours, 335 feet, 2617 candela
• Low: 200 Lumens, 20.25 hours, 164 feet, 629 candela
• Eco: 50 Lumens, 59.15 hours, 82 feet, 157 candela
• Special Modes
• Turbo: 3300 Lumens, 3 hours (accumulated), 938 feet, 20486 candela
• Flashing: 800-100 Lumens

Details

• 3300 lumen maximum output
• 286-meter beam distance
• Wireless remote switch
• OLED Display
• USB Type-C Charging
• Integrated high and low beams can be activated together or separately
• Two 3400mAh rechargeable 18650 batteries included
• 59-hour maximum runtime
• Shock-proof, quick-release handlebar mount; fits on handlebars between 28-35mm
• Flashing safety mode
• A6061-T6 aluminum body; drop-tested to 1.5 meters
• IP66-rated waterproofing with internal charge port waterproofing treatment

Batteries

• Included: Two ARB0-18-3400 rechargeable 18650 batteries
• Compatible: Any two Fenix 18650 batteries or four non-rechargeable CR123A batteries.

Size

• Length: 4.92 inches
• Width: 1.97 inches
• Height: 1.46 inches
• Weight: 10.58 ounces (including batteries)

What's included

• Fenix BC45R Mountain Biking Bicycle Light
• Wireless Remote
• Fenix ARB-L18-3400 Rechargeable 3400mAh 18650 Battery (Qty 2)
• CR1632 battery (for remote)
• Handlebar mount
• Mounting shim (thin and thick)
• USB Type-C Charging Cable
• Spare O-Ring
• Fenix BC45R User Manual