Cateye AMPP400S

The AMPP400S outputs 400 lumens, which is sufficient for urban commuting and well-lit paths. If you frequently ride on unlit rural roads or trails, you may want a higher-lumen light, but for general city visibility and safety, this is a capable choice.

Yes, the light features a built-in memory function. It will automatically return to the last mode you used when you turn it back on, saving you from cycling through settings every time.

The light includes a 3-level battery indicator. It changes color as the charge depletes, giving you a clear visual warning so you can recharge before the battery dies completely.

The light uses Cateye’s FlexTight bracket, which is a tool-free, adjustable strap system. It is designed to fit most standard handlebar diameters securely without needing extra tools.

Yes, the AMPP400S has an IPX4 water resistance rating. This means it is protected against splashing water from any angle, making it perfectly safe for use in light rain or damp conditions.

You can jump straight to the high-output mode by double-clicking the power button. This is a convenient feature for when you suddenly need maximum visibility, such as entering a dark tunnel or a busy intersection.