Cateye AMPP 900S front light - rechargeable front light features:
The 900 lumen AMPP900 features five modes: High, Middle, Low, Daytime Hyper-Constant and Flashing, these have the following stated lumens and durations:
| Mode | Approx. duration | Lumens |
| High | 2 | 900 |
| Middle | 3h | 400 |
| Low | 5h | 200 |
| Daylight Hyper-Constant | 4h | 900 / 200 |
| Flashing | 35h | 200 |
* The factory-loaded battery life might be shorter than the specification above.
* Design and specifications are subject to change without notice.
This rechargeable light charges using a USB-C cable (not included for sustainability reasons)
Charging takes approx. 4h (1A) - 8h (0.5A) to charge. It has a battery indicator, the power button goes red when the battery has less than 20% charge.
The light turns on / off with a single hold, double click changes into high power mode, and a single press cycles between modes, the light has a mode memory. There is excellent side visibility and this light has CatEye's wide beam OptiCube lens technology.
The light comes with a FlexTight Bracket to fit handlebars with a diameter of 22 - 35mm, and is also compatible with frame mounted adaptors (not included). The AMPP900S has an improved release button which is made easier to remove the light from the bracket.
Cateye AMPP 900S (HL-EL085S RC) front light weighs 136 grams
If you have lost your Volt 400/AMP500 light from your Brompton, this light will fit onto the bracket. If you want to fit to a Brompton on you will need:
a replacement dynamo lamp bracket only (code: Q101219 reference: QVBKTFLAMDYN-LED) used in combination with
a CatEye center fork light bracket (#5342440) - this is just for the CateEye adaptor and will not fit without the correct Brompton bracket (we have tried)!