Sigma Buster 1100 vs Busch & Müller IQ-X
Comparison 2026 — Bike Lights
VS
Our verdict
Based on our weighted scoring, the Busch & Müller IQ-X edges out the Sigma Buster 1100 with an overall score of 92/100 against 78/100. It scores particularly well on brightness (90/100) and battery life (100/100), making it the better all-round pick in Bike Lights.
The Sigma Buster 1100 remains a sensible alternative if price is your main concern — it lands at €74.95 versus €89.95.
Brightness winner
Sigma Buster 1100
6% higher than its rival
Value winner
Busch & Müller IQ-X
4% better value for money
Specifications
| Specification | Sigma Buster 1100 | Busch & Müller IQ-X |
|---|---|---|
| Price | €74.95+20% | €89.95 |
| Rating | ★4.5 (1,210) | ★4.7 (960) |
| Overall | 78/100 | 92/100+18% |
| Lighting | ||
| Brightness | 1100 lumen+1000% | 100 lux |
| Certification | CE (geen StVZO) | StVZO, CE |
| Modes | 5 | — |
| Standlight | — | Ja, met condensor |
| Battery | ||
| Type | USB-C Li-ion, snellaad | — |
| Runtime | 1,5 u (1100 lm) / 3,5 u (500 lm) | — |
| Charge time | 2,5 u | — |
| Properties | ||
| Weight | 148 g | 145 g+2% |
| Waterproof rating | IPX5 | IP44+780% |
| Mount | Stuur + helm meegeleverd | — |
| Power | ||
| Type | — | Naafdynamo 6V / 3W |
Pros and cons
Sigma Buster 1100
Pros
- 1100 lumens — enough to light pitch-black forest 50 metres ahead
- Helmet mount AND bar mount included
- USB-C fast-charge (2.5 hours empty-to-full)
- Aluminium heatsink prevents throttling on long rides
Cons
- No StVZO approval — legally dubious in the Netherlands as sole front light
- Just 1.5 hours runtime on full power
Busch & Müller IQ-X
Pros
- 100 lux with the widest, most even beam in its class
- Hub-dynamo powered: no more charging or battery swaps ever
- Standlight with capacitor — stays lit at traffic lights
- Fully weather resistant and virtually maintenance free
Cons
- Requires a hub dynamo — not an option for bikes without one
- Permanent mount: not easily swapped between bikes