The reasons why the brightness of lithium battery headlights changes are as follows:
1. Battery power: When the lithium battery power is low, the headlight brightness will decrease. Indeed, the battery is insufficient to provide sufficient energy to the headlight.
2. Mode of use: Some headlamps have multiple brightness modes, and the brightness will be different in different modes. You will need to consult your headlamp's user manual to find out how to switch between different brightness modes.
3. Temperature Issues: Under extreme temperature conditions, the performance of lithium batteries will be affected. In cold environments, the lithium battery voltage will decrease, making the headlight less bright. Likewise, in high temperature environments, battery performance will also decrease.
4. Maintenance Issues:If the headlight is used for a long time or is often bumped, poor contact or poor battery contact will result in unstable brightness. You can check the battery and battery box to ensure proper operation. the battery is installed correctly and in contact with the contact point. A headlamp is a portable lighting device worn on a person's head to provide illumination. It consists of a lamp and a strap attached to the head.