Fenix BC05R V2.0 Rechargeable Bike Tail Light – 15 Lumens

Be seen from every angle

The Fenix BC05R V2.0 is an ultra-compact rechargeable tail light that makes sure drivers see you — a 15-lumen red beam with a 50-meter throw that's recognizable up to 230 meters away. The 180° wide-angle lens wraps light around both sides, warning drivers approaching from the left, right, and rear.

Six modes for every situation

• High: 15 lumens — 4.5 hours — steady beam for racing and mountain biking
• High Flash (Fast): 15 lumens — 35 hours
• High Flash (Slow): 15 lumens — 25 hours
• Low: 5 lumens — 16 hours — steady beam for urban commuting
• Low Flash (Fast): 5 lumens — 120 hours
• Low Flash (Slow): 5 lumens — 80 hours

Months between charges

The built-in 400mAh Li-polymer battery runs up to 120 hours on Low Flash — that's two hours of commuting every day for 60 days. When it's finally time to top up, the USB-C port refills it in just 1.5 hours. A four-level battery indicator (green/red) shows remaining charge with a single click when the light is off.

Mounts anywhere, goes beyond the bike

The high-elastic silicone strap fits 20–35 mm seatposts, and a high-strength clip lets you attach the BC05R V2.0 to a seat bag, riding bag, backpack strap — or wear it on your waist or chest as a warning light. It's also a great companion for nighttime running, hiking, and walking.

Built for bad weather

IP66 sealing keeps out dust and heavy rain, and the light survives 1.5-meter drops. At just 28 grams (51 × 22 × 22 mm), you'll barely notice it's there — until a driver does.

V2.0 vs. the original

The BC05R V2.0 improves on its predecessor with 50% more brightness (15 vs. 10 lumens), 67% more runtime (120 vs. 72 hours), and a 50% wider beam angle (180° vs. 120°).

Specifications

• Max output: 15 lumens; beam distance: 50 meters; recognizable to 230 meters
• Battery: built-in 400mAh Li-polymer rechargeable
• Charging: USB Type-C, 1A — full charge in 1.5 hours
• Waterproof: IP66; impact resistant to 1.5 m
• Size: 2.01″ × 0.87″ × 0.87″ (51 × 22 × 22 mm); weight: 0.99 oz (28 g) with battery