Knog Cobber Big vs Trelock LS 660 I-GO Vision
Comparison 2026 — Bike Lights
VS
Our verdict
Based on our weighted scoring, the Trelock LS 660 I-GO Vision edges out the Knog Cobber Big with an overall score of 82/100 against 80/100. It scores particularly well on brightness (86/100) and battery life (84/100), 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 €49.95.
Brightness winner
Trelock LS 660 I-GO Vision
2% higher than its rival
Value winner
Knog Cobber Big
2% better value for money
Specifications
| Specification | Knog Cobber Big | Trelock LS 660 I-GO Vision |
|---|---|---|
| Price | €49.95 | €49.95 |
| Rating | ★4.5 (2,140) | ★4.3 (680) |
| Overall | 80/100 | 82/100+3% |
| Lighting | ||
| Brightness | 170 lumen+70% | 100 lux |
| Beam angle | 330° | — |
| Modes | 8 (incl. steady) | — |
| Certification | — | StVZO, CE |
| Battery | ||
| Type | USB-C Li-ion | USB-C Li-ion |
| Runtime | 3 u (hoog) / 50 u (eco) | 5 u / 20 u+67% |
| Properties | ||
| Weight | 39 g+144% | 95 g |
| Waterproof rating | IP67+1240% | IPX5 |
| Mount | Siliconen band | — |
Pros and cons
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
Trelock LS 660 I-GO Vision
Pros
- 100 lux with a uniform beam thanks to a custom lens design
- USB-C charging port — future-proof and fast charging
- Automatic light sensor adapts brightness to surroundings
- Made in Germany build quality and 3-year warranty
Cons
- Mounting bracket can rattle slightly on vibrations
- Higher price point than comparable Sigma lights