The Knog Cobber Reflex is built for cyclists who take visibility seriously, whether they’re commuting through busy streets, riding at dawn, or navigating dimly lit roads after dark. The front light pushes out 350 lumens in pulse mode and the rear delivers 250 lumens, giving you a presence on the road that drivers genuinely can’t miss. What sets the Knog Cobber Reflex apart from a standard bike light is the reflex technology built into each unit: the light adapts to changes in your speed and angle, so your visibility adjusts automatically as your riding conditions change. That’s particularly useful in urban environments where you’re constantly accelerating, braking, and turning.

Operation couldn’t be simpler. A long press turns the light on or off, and a short press cycles through the modes. Despite that simplicity, there’s serious engineering under the hood. Chip on Board (COB) LEDs maintain maximum brightness for up to 90% of the battery’s burn time, which means you’re not gradually losing light output as the ride goes on. The 330-degree beam angle means you’re visible from almost every direction, not just directly behind or in front. Both lights are rated IP67 waterproof to one metre, so rain, puddles, and wet commutes are a non-issue. Charging is via USB-C, and a red ring around the button alerts you when battery is running low, turning green once the light is fully charged.

For riders who want more control, the Knog Cobber Reflex twinpack supports customisable light modes through Knog’s ModeMaker 2.0 software via web-USB, letting you program the exact behaviour you want. Mounting is handled by silicone straps that fit handlebars from 22-32mm and above, and head tubes up to 200mm, with compatibility for both standard and aero seatposts and bars. The quick-release mount makes swapping between bikes or taking the lights inside straightforward. Whether you’re a year-round commuter, a weekend rider, or someone who just wants reliable, high-performance bike lights that work in any weather, the Knog Cobber Reflex twinpack covers both ends of your bike without compromise.

Front Light Modes

• High: 150 lumens, 2.5 hr runtime
• Low: 50 lumens, 8 hr runtime
• Pulse: 350 lumens, 8 hr runtime
• Steady: 40 lumens, 70 hr runtime

Rear Light Modes

• High: 75 lumens, 2.5 hr runtime
• Low: 20 lumens, 8 hr runtime
• Pulse: 250 lumens, 8 hr runtime
• Steady: 20 lumens, 70 hr runtime

Key Features

• Front: 350 lumens / Rear: 250 lumens (peak pulse mode)
• Up to 70 hr runtime (steady mode)
• 330-degree beam angle
• Quick mount release
• IP67 waterproof rating (to 1 metre)
• USB-C rechargeable
• Pre-programmed with 4 light modes
• Customisable modes via Knog ModeMaker 2.0 app (web-USB)
• Compatible with standard and aero seatposts and bars
• Silicone strap mounts: bars 22-32mm and above, head tubes up to 200mm
• COB LEDs maintain maximum brightness for up to 90% of battery burn time
• Single-button operation