Knog Blinder 900 vs Knog Cobber Big
Comparison 2026 — Bike Lights
Our verdict
Based on our weighted scoring, the Knog Blinder 900 edges out the Knog Cobber Big with an overall score of 80/100 against 80/100. It scores particularly well on brightness (94/100) and battery life (68/100), making it the better all-round pick in Bike Lights.
The Knog Cobber Big remains a sensible alternative if price is your main concern — it lands at €49.95 versus €69.95.
Brightness winner
Knog Blinder 900
10% higher than its rival
Value winner
Knog Cobber Big
6% better value for money
Specifications
| Specification | Knog Blinder 900 | Knog Cobber Big |
|---|---|---|
| Price | €69.95 | €49.95+40% |
| Rating | ★4.2 (420) | ★4.5 (2,140) |
| Overall | 80/100 | 80/100 |
| Lighting | ||
| Brightness | 900 lumen+429% | 170 lumen |
| Certification | CE | — |
| Beam angle | — | 330° |
| Modes | — | 8 (incl. steady) |
| Battery | ||
| Type | USB ingebouwd | USB-C Li-ion |
| Runtime | 1,5 u / 20 u | 3 u (hoog) / 50 u (eco)+100% |
| Properties | ||
| Weight | 115 g | 39 g+195% |
| Waterproof rating | IP67 | IP67 |
| Material | CNC aluminium | — |
| Mount | — | Siliconen band |
Pros and cons
Knog Blinder 900
Pros
- 900 lumens of power — capable on unlit forest tracks
- Built-in USB-A plug: no charging cable required
- Extremely compact CNC aluminium housing
- Six light modes including daytime running light and eco
Cons
- Not StVZO approved — can dazzle oncoming traffic without adjustment
- Relatively short runtime on full power (1.5 hours)
Knog Cobber Big
Pros
- 330° visibility — you're seen from the side at junctions too
- USB-C charging port (Knog finally caught up)
- 170 lumens, bright enough for daytime riding
- Silicone housing — no fragile hinges or brittle clamps
Cons
- Flash modes are not legal as sole rear light in the Netherlands
- Silicone strap wears after 2-3 years of daily use