CatEye AMPP 800 vs Knog Blinder 900
Comparison 2026 — Bike Lights
Our verdict
Based on our weighted scoring, the Knog Blinder 900 edges out the CatEye AMPP 800 with an overall score of 80/100 against 74/100. It scores particularly well on brightness (94/100) and battery life (68/100), 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 €69.95.
Brightness winner
Knog Blinder 900
8% higher than its rival
Value winner
CatEye AMPP 800
8% better value for money
Specifications
| Specification | CatEye AMPP 800 | Knog Blinder 900 |
|---|---|---|
| Price | €44.95+56% | €69.95 |
| Rating | ★4.4 (3,620) | ★4.2 (420) |
| Overall | 74/100 | 80/100+8% |
| Lighting | ||
| Brightness | 800 lumen | 900 lumen+13% |
| Lens | Opti-Cube, met zijvensters | — |
| Modes | 5 + Boost | — |
| Certification | — | CE |
| Battery | ||
| Type | Micro-USB Li-ion | USB ingebouwd |
| Runtime | 2 u (hoog) / 9 u (eco)+33% | 1,5 u / 20 u |
| Properties | ||
| Weight | 131 g | 115 g+14% |
| Waterproof rating | IPX4 | IP67+1575% |
| Mount | FlexTight gereedschapsloos | — |
| Material | — | CNC aluminium |
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
Knog Blinder 900
Pros
- 900 lumens of power — capable on unlit forest tracks
- Built-in USB-A plug: no charging cable required
- Extremely compact CNC aluminium housing
- Six light modes including daytime running light and eco
Cons
- Not StVZO approved — can dazzle oncoming traffic without adjustment
- Relatively short runtime on full power (1.5 hours)