Sigma Aura 80 USB vs Knog Blinder 900
Comparison 2026 — Bike Lights
Our verdict
Based on our weighted scoring, the Knog Blinder 900 edges out the Sigma Aura 80 USB with an overall score of 80/100 against 78/100. It scores particularly well on brightness (94/100) and battery life (68/100), making it the better all-round pick in Bike Lights.
The Sigma Aura 80 USB remains a sensible alternative if price is your main concern — it lands at €34.95 versus €69.95.
Brightness winner
Knog Blinder 900
18% higher than its rival
Value winner
Sigma Aura 80 USB
20% better value for money
Specifications
| Specification | Sigma Aura 80 USB | Knog Blinder 900 |
|---|---|---|
| Price | €34.95+100% | €69.95 |
| Rating | ★4.4 (1,560) | ★4.2 (420) |
| Overall | 78/100 | 80/100+3% |
| Lighting | ||
| Brightness | 80 lux | 900 lumen+1025% |
| Certification | StVZO, CE | CE |
| Battery | ||
| Type | USB Li-ion | USB ingebouwd |
| Runtime | 4 u (hoog) / 15 u (eco)+167% | 1,5 u / 20 u |
| Properties | ||
| Weight | 73 g+58% | 115 g |
| Waterproof rating | IPX4 | IP67+1575% |
| Mount | Siliconen snelkoppeling | — |
| Material | — | CNC aluminium |
Pros and cons
Sigma Aura 80 USB
Pros
- 80 lux output — more than enough for unlit cycle paths
- StVZO approved: no dazzling of oncoming traffic
- USB rechargeable with up to 15 hours runtime in eco mode
- Quick-release mount for easy removal to prevent theft
Cons
- Micro-USB instead of USB-C (outdated connector)
- No daytime running light mode available
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)