| 摘要 |
<p>A photocell comprising a box-like body (2) constituted by a first half-shell (3) and by a second half-shell (4) which can be mutually coupled. Inside the first half-shell (3) there is a support (10), for example for a light source (11), which rotates about a first vertical axis. The light source (11) in turn selectively rotates on a second axis which is perpendicular to the first axis. <IMAGE></p> |
