Road cyclists, commuters, and anyone who rides in traffic knows that being seen isn’t just about having a light pointing forward. The Knog Cobber Big puts out a 330-degree spread of light, meaning drivers approaching from the side, at intersections, or on roundabouts can see you clearly, not just the person directly behind. With 470 lumens in its brightest modes and a wide-angle COB LED setup, this light is built for riders who take visibility seriously, whether that’s a daily commuter navigating busy streets or a weekend rider tackling early morning rides before the sun comes up.

Battery life is where this light really earns its place on the handlebars. The COB LED technology maintains maximum brightness for up to 90% of the battery’s burn time, so you’re not slowly fading into the background as the ride goes on. At the other end of the scale, the Eco Flash mode stretches runtime out to 120 hours, making it ideal for riders who want a set-and-forget light that won’t die mid-commute. There’s no cable to hunt for either as it charges directly from any USB-A port via a built-in connector, and a colour-changing ring around the button tells you exactly when it’s low and when it’s full.

Setup takes seconds. The silicone straps fit round bars from 22mm up to 32mm and beyond, plus head tubes up to 200mm, with both standard and aero magnetic mounts included so it works with a wide range of bikes. Eight pre-programmed modes cover every riding scenario, and if you want to dial things in further, Knog’s Modemaker app lets you customise them to suit your routine. Waterproof to IP67 means a metre of submersion won’t phase it, so rain, puddles, and winter commutes are no problem at all.

Light Modes

• Max: 280 lumens, 2.5 hr runtime
• Mid: 100 lumens, 5 hr runtime
• Steady Pulse: 470 lumens, 3.5 hr runtime
• Flash: 470 lumens, 9 hr runtime
• Rolling Flash: 190 lumens, 8 hr runtime
• Side Flash: 280 lumens, 3.5 hr runtime
• Disco Flash: 230 lumens, 7 hr runtime
• Eco Flash: 35 lumens, 120 hr runtime

Key Features

• 470 lumens peak output
• 330-degree beam angle
• Up to 120 hr runtime
• 8 pre-programmed light modes
• Customisable via Knog Modemaker app
• Integrated USB-A connector, cable-free charging
• LED charge indicator ring (red = low, green = full)
• IP67 waterproof rating (up to 1 metre)
• Quick-release mount
• Silicone straps for bars 22-32mm and above
• Compatible with head tubes up to 200mm (7.9″)
• Includes standard and aero magnetic mounts
• Single button operation