| 摘要 |
<p>The element has a base plate (10) with a cylindrical casing surface, which has an undercut groove. A light unit i.e. LED, is arranged on a front side of the base plate. The groove divides the base plate into two sections, where both sections have electrical contact surfaces. The contact surfaces are spaced from each other and stand in electrical contact with the light unit. External threads are arranged on the casing surface of the base plate, where a covering element is screwable into the threads and made of metal. An independent claim is also included for a connecting unit comprising two contact surfaces.</p> |
