The Fenix BC45R is Fenix's brightest bike light to date, engineered for mountain bikers and adventure racers who need maximum brightness on dark, rugged, and remote terrain. Its independently controlled spotlight and floodlight system lets riders illuminate long-range trail ahead and near-field terrain simultaneously, or run either beam on its own depending on conditions.

Performance
The BC45R delivers up to 3,300 lumens with a maximum beam distance of 938 feet (286m), powered by one SFT-40 cold white LED and four SST12 cold white LEDs. It offers nine lighting modes, including three high beam levels, four low beam levels, Turbo, and Flash.

Control
An OLED display shows battery level, charging status, lumen output, brightness level, and active mode in real time. The included wireless remote switch mounts within thumb's reach of the bars, giving riders instant access to Turbo and Flash modes without taking their hands off the grips.

Power System
Two included ARB-L18-3400 18650 rechargeable batteries (replaceable) power the light for 6+ hours on High and up to 59 hours on lower settings. Charging is handled through an inner-waterproof USB-C port.

Construction
Built from durable A6061-T6 aluminum, the BC45R is IP66-rated for water and dust resistance and rated for 1.5-meter impact resistance. It weighs 10.58 oz (300g) including battery and comes with a quick-release mount compatible with handlebars from 28–35mm, plus a bicycle mounting shim, spare O-ring, and USB-C charging cable.

Bike Light Controls:

Low Beam Switch:

• Press and hold for more than 0.5 seconds to turn the light on or off.
• Single click to cycle through Eco, Low, Medium, and High brightness levels.

• Press and hold for more than 0.5 seconds to turn the light on or off.
• Single click to cycle through Low, Medium, and High brightness levels.

• Single click to cycle through Eco, Low, Medium, and High brightness levels.

• Single click to cycle through Low, Medium, and High brightness levels.

• Single click: Turbo Mode
• Double click: Flash Mode
• Press and hold for 1.5 seconds: Sleep Mode

Brightness Levels:

High Beam Mode:
High: 2000 lumens, 5hrs 15mins runtime, 269 meters
Med: 800 lumens, 6hrs 15mins runtime, 174 meters
Low: 200 lumens, 16hrs 45mins runtime

Low Beam Mode:
High: 1500 lumens, 5hrs 30mins runtime, 142 meters
Med: 800 lumens, 6hrs 15mins runtime, 102 meters
Low: 200 lumens, 20hrs 15mins runtime, 50 meters
Eco: 50 lumens, 59hrs 9mins runtime, 25 meters

Special Mode:
Turbo: 3300 lumens, 3hrs runtime, 286 meters
Flash: 800-100 lumens

The Fenix BC45R includes: