Busch & Müller Lumotec IQ-XS vs Trelock LS 660 I-GO Vision
Comparison 2026 — Bike Lights
VS
Our verdict
Based on our weighted scoring, the Busch & Müller Lumotec IQ-XS edges out the Trelock LS 660 I-GO Vision with an overall score of 82/100 against 82/100. It scores particularly well on brightness (78/100) and battery life (98/100), making it the better all-round pick in Bike Lights.
The Trelock LS 660 I-GO Vision remains a sensible alternative if price is your main concern — it lands at €49.95 versus €45.00.
Brightness winner
Trelock LS 660 I-GO Vision
8% higher than its rival
Value winner
Busch & Müller Lumotec IQ-XS
8% better value for money
Specifications
| Specification | Busch & Müller Lumotec IQ-XS | Trelock LS 660 I-GO Vision |
|---|---|---|
| Price | €45.00+11% | €49.95 |
| Rating | ★4.6 (1,820) | ★4.3 (680) |
| Overall | 82/100 | 82/100 |
| Lighting | ||
| Brightness | 70 lux | 100 lux+43% |
| Certification | StVZO, CE | StVZO, CE |
| DRL | Ja, automatisch >6 km/u | — |
| Power | ||
| Type | Naafdynamo 6V/3W | — |
| Standlight | 4 minuten | — |
| Properties | ||
| Weight | 82 g+16% | 95 g |
| Waterproof rating | IPX4 | IPX5+25% |
| Mount | Vork- of kroonsteun | — |
| Battery | ||
| Type | — | USB-C Li-ion |
| Runtime | — | 5 u / 20 u |
Pros and cons
Busch & Müller Lumotec IQ-XS
Pros
- 70 lux dynamo-powered — no battery to charge, ever
- StVZO approved with sharp cut-off, no dazzling
- Daytime running light (DRL) boosts daytime visibility by 30%
- Standlight stays on for 4 minutes after stopping at traffic lights
Cons
- Requires an existing hub dynamo — not a plug-and-play retrofit
- Wired installation is more involved than clipping on a USB light
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