Busch & Müller Lumotec IQ-XS vs CatEye AMPP 800
Comparison 2026 — Bike Lights
VS
Our verdict
Based on our weighted scoring, the Busch & Müller Lumotec IQ-XS edges out the CatEye AMPP 800 with an overall score of 82/100 against 74/100. It scores particularly well on brightness (78/100) and battery life (98/100), making it the better all-round pick in Bike Lights.
The CatEye AMPP 800 remains a sensible alternative if price is your main concern — it lands at €44.95 versus €45.00.
Brightness winner
CatEye AMPP 800
8% higher than its rival
Value winner
Busch & Müller Lumotec IQ-XS
4% better value for money
Specifications
| Specification | Busch & Müller Lumotec IQ-XS | CatEye AMPP 800 |
|---|---|---|
| Price | €45.00 | €44.95 |
| Rating | ★4.6 (1,820) | ★4.4 (3,620) |
| Overall | 82/100+11% | 74/100 |
| Lighting | ||
| Brightness | 70 lux | 800 lumen+1043% |
| Certification | StVZO, CE | — |
| DRL | Ja, automatisch >6 km/u | — |
| Lens | — | Opti-Cube, met zijvensters |
| Modes | — | 5 + Boost |
| Power | ||
| Type | Naafdynamo 6V/3W | — |
| Standlight | 4 minuten | — |
| Properties | ||
| Weight | 82 g+60% | 131 g |
| Waterproof rating | IPX4 | IPX4 |
| Mount | Vork- of kroonsteun | FlexTight gereedschapsloos |
| Battery | ||
| Type | — | Micro-USB Li-ion |
| Runtime | — | 2 u (hoog) / 9 u (eco) |
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
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