| 摘要 |
<p>A panel for use in a ceiling comprises a plurality of pairs of electrically conductive members (14; 211), for example, aluminium, spaced from one another by insulating members (16; 214). In use, an electrical supply is connected 5 across the ends of pairs of adjacent conductive members (14; 211). Lamp units (12; 212) comprising a support member (30) for carrying an electric lamp (24) and an associated reflector (26) and provided with contact means for electrical connection to the lamp (24) can be inserted between the conductive members. The support 10 members (30) are so shaped that they are retained between the conductive members with the contact means of the lamp unit (12; 212) engaging them to connect the lamps (24) to the electrical supply.</p> |
