Busch & Müller IQ-X vs CatEye AMPP 800
Comparison 2026 — Bike Lights
VS
Our verdict
Based on our weighted scoring, the Busch & Müller IQ-X edges out the CatEye AMPP 800 with an overall score of 92/100 against 74/100. It scores particularly well on brightness (90/100) and battery life (100/100), making it the better all-round pick in Bike Lights.
The CatEye AMPP 800 remains a sensible alternative if price is your main concern — it lands at €44.95 versus €89.95.
Brightness winner
Busch & Müller IQ-X
4% higher than its rival
Value winner
CatEye AMPP 800
2% better value for money
Specifications
| Specification | Busch & Müller IQ-X | CatEye AMPP 800 |
|---|---|---|
| Price | €89.95 | €44.95+100% |
| Rating | ★4.7 (960) | ★4.4 (3,620) |
| Overall | 92/100+24% | 74/100 |
| Lighting | ||
| Brightness | 100 lux | 800 lumen+700% |
| Certification | StVZO, CE | — |
| Standlight | Ja, met condensor | — |
| Lens | — | Opti-Cube, met zijvensters |
| Modes | — | 5 + Boost |
| Power | ||
| Type | Naafdynamo 6V / 3W | — |
| Properties | ||
| Weight | 145 g | 131 g+11% |
| Waterproof rating | IP44+1000% | IPX4 |
| Mount | — | FlexTight gereedschapsloos |
| Battery | ||
| Type | — | Micro-USB Li-ion |
| Runtime | — | 2 u (hoog) / 9 u (eco) |
Pros and cons
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
CatEye AMPP 800
Pros
- 800 lumens with Opti-Cube lens — even beam, no dark spots
- Side windows in the housing make you visible at junctions
- FlexTight bracket clamps tool-free onto any bar diameter
- Boost mode: tap for 10 sec of extra light when obstacles pop up
Cons
- No StVZO approval — beam may dazzle oncoming traffic
- Micro-USB instead of USB-C