CatEye AMPP 800 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 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 | CatEye AMPP 800 | Busch & Müller IQ-X |
|---|---|---|
| Price | €44.95+100% | €89.95 |
| Rating | ★4.4 (3,620) | ★4.7 (960) |
| Overall | 74/100 | 92/100+24% |
| Lighting | ||
| Brightness | 800 lumen+700% | 100 lux |
| Lens | Opti-Cube, met zijvensters | — |
| Modes | 5 + Boost | — |
| Certification | — | StVZO, CE |
| Standlight | — | Ja, met condensor |
| Battery | ||
| Type | Micro-USB Li-ion | — |
| Runtime | 2 u (hoog) / 9 u (eco) | — |
| Properties | ||
| Weight | 131 g+11% | 145 g |
| Waterproof rating | IPX4 | IP44+1000% |
| Mount | FlexTight gereedschapsloos | — |
| Power | ||
| Type | — | Naafdynamo 6V / 3W |
Pros and cons
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
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