| 摘要 |
A lamp for use in conjunction with a traffic cone is disclosed. The lamp comprises a housing that has a tubular body portion (10) and a head portion (12). The head portion is disposed on an axial end of the body portion. The body portion contains a rechargeable battery pack. The head portion contains a light-emitting device and control circuitry, and carries a photovoltaic panel (30) that is directed axially away from the body portion. Under the control of the control circuitry, the photovoltaic panel can charge the battery pack when the ambient light is in excess of a trigger threshold, and the battery pack can power the light-emitting device when the ambient light is below a threshold. The output of the photovoltaic cell is monitored to determine the ambient light level, and control operation of the lamp in response thereto. |
