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A compact and powerful bike light, the AMPP400S delivers 400 lumens of bright, focused illumination using CatEye’s OptiCube™ lens technology. Designed for versatility and daily reliability, it features five light modes, a USB-C charging port, and a low battery indicator integrated into the power switch. The FlexTight™ bracket ensures easy, tool-free mounting to any handlebar, while the double-click-to-high function lets you instantly switch to maximum output in changing conditions.
NOW WITH A 5 YEAR WARRANTY!
Features
- Rechargeable headlight with 400 lumens output
- Five light modes – High / Middle / Low / Daytime HyperConstant / Flashing
- Excellent side visibility for increased safety
- Double-click power button for instant High mode
- Up to 60 hours of runtime
- Light mode memory function
- Excellent daytime visibility in HyperConstant mode
- Large power button for easy operation
- USB-C charging port
- FlexTight™ bracket fits handlebars 22–35mm
- Weight: 106g
SPECIFICATIONS
Dimension: 34 x 100 x 37mm
Weight: 106 grams (light unit and battery)
Light source: High intensity white LED x1
Battery: Li-ion rechargeable battery (3.6v–2200mAh)
Recharge time: Approx 4 hrs (1A)
Water resistant: IPX4
RUNTIMES
High mode (400 lumens): 2 hrs
Middle mode (200 lumens): 4 hrs
Low mode (100 lumens): 8 hrs
HyperConstant mode (400/100 lumens): 6 hrs
Flashing mode (100 lumens): 60 hrs
Charging time (from empty): 4 hrs
| Order Value | Service | Estimated Delivery | Cost |
|---|---|---|---|
| Under £39.99 | Royal Mail Tracked | 2–3 working days from dispatch | £4.99 |
| £39.99 and over | Royal Mail Tracked | 2–3 working days from dispatch | FREE |
| Any order — Express | Royal Mail Tracked 24hr / Parcel Force 24hr | Next working day from dispatch | £6.99 |
| Bikes | Parcel Force 48hr Signed For | 2 working days from dispatch | FREE |
Delivery times shown are from dispatch, not from the point of ordering. As we source products from a range of suppliers, lead times can vary — please check the product page, your cart, or your order confirmation for the most accurate estimate for this item.
Some remote UK postcodes (Highlands, Islands) may carry a courier surcharge on larger orders — we will always contact you before applying any additional charge.
Questions? Email sales@cyclestore.co.uk with your order number.

