A lighting fixture for use as a spotlight is provided. A lamp holder with radially extending resilient fins is inserted into a cylindrical body which may be made of PVC pipe. The frictional engagement of the radially extending resilient fins against the interior wall of the cylindrical body allows the...http://www.google.se/patents/US5183330?utm_source=gb-gplus-sharePatent US5183330 - Lighting fixture with lamp holder including integral resilient fins
