| 摘要 |
A lighting device has an upper casing 1, a middle casing 2, a lower casing 4, and a sensor (20, fig 1). The middle casing 2 has threads to join the upper 1 and lower 4 casings. Light emitting diodes placed in the middle casing surround the sensor (20, fig 1). The lower casing 4 is joined to a power socket. The sensor (20, fig 1) has a cylindrical casing 203 with a spherical top end threaded through a ring 202, which form a spherical shape. The sensor (20, fig 1) is rotatable in a spherical concave 201 on the middle casing 2, so that it could be easily turned to point to a desired direction. Ventilation holes (23, fig 1) and slots (24, fig 1) are provided. |
