| 摘要 |
A helmet light device includes a body, a driver, an adjustable shot device and a sensor device. An illuminant is set up in the body. The adjustable shot device is moved back and forth by the driver and the adjustable shot device is moving back and forth simultaneously relative to the illuminant for adjusting the emission characteristics. The sensor device includes an electrical sensor and a battery, wherein the electrical sensor is set up on the body for receiving a command from a user to the driver and the battery provides electricity for the electrical sensor and the driver to electrically adjust the emission characteristics of the helmet light device. |
